DeepSeek AI for Google Sheets: How to Connect the API, Use AI Formulas, and Automate Workflows

Last updated: July 14, 2026.

Yes, you can use DeepSeek AI for Google Sheets, but it is usually not a native Google Sheets feature. In practice, you connect DeepSeek to Sheets in one of three ways: by calling the DeepSeek API with Google Apps Script, by installing a third-party Google Workspace add-on that supports DeepSeek, or by using a no-code automation platform such as Zapier, Make, or n8n. DeepSeek’s official API currently uses an OpenAI/Anthropic-compatible format, with https://api.deepseek.com as the OpenAI-format base URL and current model IDs including deepseek-v4-flash and deepseek-v4-pro.

The best option depends on what you need. If you want a custom spreadsheet formula such as =DEEPSEEK("summarize", A2), Apps Script is the most flexible route. If you want the fastest no-code setup, a Marketplace add-on is easier. If you want to trigger workflows when rows are added or updated, an automation platform is usually cleaner.

What “DeepSeek AI for Google Sheets” Actually Means

“DeepSeek AI for Google Sheets” can mean several different things:

Goal	Best method	Why
Create an AI formula inside cells	Google Apps Script + DeepSeek API	Best control over prompts, model choice, and output
Process a few rows manually	Apps Script custom function or add-on	Good for small spreadsheet tasks
Process hundreds or thousands of rows	Apps Script menu workflow, Make, Zapier, n8n, or your own backend	More reliable than many live formulas
Avoid coding entirely	Google Workspace Marketplace add-on	Fastest setup, but third-party permissions and pricing vary
Add AI to business workflows	Zapier, Make, n8n, or internal API proxy	Better for triggers, batching, logging, retries, and approvals
Use Google’s native AI inside Sheets	Gemini in Sheets	Native Google experience, but not DeepSeek

Google Sheets supports custom functions through Apps Script, and custom functions can be used in cells like built-in formulas. Google’s documentation also notes that custom functions have important restrictions, including deterministic arguments, read-only behavior outside returned cells, and a 30-second execution limit.

The Three Best Ways to Use DeepSeek in Google Sheets

1. Google Apps Script + DeepSeek API

This is the best method if you want control. You can create a custom function, choose the DeepSeek model, design your own prompts, and decide how data moves between Sheets and the API.

Use this method if you want to:

Summarize customer feedback row by row
Classify leads, tickets, or survey responses
Translate text in bulk
Generate SEO titles and meta descriptions
Clean messy product data
Extract attributes from descriptions
Create repeatable spreadsheet workflows

Apps Script can call external APIs using UrlFetchApp, and Google’s documentation explains that UrlFetchApp can make HTTP and HTTPS requests to external hosts. DeepSeek’s Chat Completion endpoint is /chat/completions, and the current API reference lists deepseek-v4-flash and deepseek-v4-pro as valid model values for chat completions.

2. Google Workspace Marketplace Add-ons

This is the easiest method for non-technical users. Some Google Workspace Marketplace add-ons support DeepSeek or broader multi-model AI workflows.

For example, Marketplace listings currently include AI add-ons that mention DeepSeek support, custom functions such as =DEEPSEEK(), or multi-model access across Sheets, Docs, Slides, and other Workspace apps. Always check the listing’s current permissions, supported models, pricing, privacy policy, and terms before installing because these tools are third-party products, not native DeepSeek or Google integrations unless clearly stated.

This method is best if you want:

A quick setup
No code
A sidebar interface
Prebuilt AI formulas
Team-friendly billing
Built-in bulk tools

The tradeoff is that you must trust an additional third party with spreadsheet access. Google’s add-on help page also notes that add-ons may request access to data they need to work, and users should read the access message before allowing permissions.

3. No-Code Automation Tools

No-code platforms are useful when you do not need AI formulas inside cells, but you do want automated workflows.

For example:

When a new Google Sheets row is created, send the text to DeepSeek.
Save the DeepSeek response back into another column.
Route low-confidence results for human review.
Send summaries to Slack, Gmail, a CRM, or a database.

Zapier’s DeepSeek and Google Sheets integration page describes a no-code workflow where a Google Sheets trigger can be followed by a DeepSeek action such as “Create Chat Completion.” Make lists DeepSeek AI actions such as creating a chat completion, getting balance, and making an API call, alongside Google Sheets actions such as adding or updating rows. n8n also lists a DeepSeek Chat Model and Google Sheets integration, with options for hosted or self-hosted workflows.

Use this route when reliability, retries, and workflow visibility matter more than having a formula in every cell.

DeepSeek API Facts to Know Before Connecting It to Sheets

Before writing code, confirm the DeepSeek API details in the official documentation. As of the July 15, 2026 review, the official quick-start documentation says the DeepSeek API is compatible with OpenAI/Anthropic API formats, uses https://api.deepseek.com for OpenAI-format access, and lists deepseek-v4-flash and deepseek-v4-pro as current model options. It also says the older deepseek-chat and deepseek-reasoner names are scheduled for deprecation on July 24, 2026 at 15:59 UTC, so new Google Sheets workflows should use the V4 model IDs instead of older aliases.

DeepSeek’s pricing page currently lists both deepseek-v4-flash and deepseek-v4-pro with a 1M context length and token-based pricing. As of the same documentation snapshot, deepseek-v4-flash is listed at $0.0028 per 1M input tokens for cache hits, $0.14 per 1M input tokens for cache misses, and $0.28 per 1M output tokens; deepseek-v4-pro is listed at $0.003625 per 1M input tokens for cache hits, $0.435 per 1M input tokens for cache misses, and $0.87 per 1M output tokens.

How to Connect DeepSeek API to Google Sheets with Apps Script

This setup creates a custom formula you can use in Sheets, such as:

=DEEPSEEK("Summarize this customer feedback in one sentence", A2)

Use this only on a small sample first. Calling AI APIs from many cells at once can be slow, costly, and more likely to hit Apps Script, Sheets, or DeepSeek limits.

Step 1: Get a DeepSeek API Key

Create or sign in to your DeepSeek platform account and generate an API key. Do not paste the key into a spreadsheet cell. Anyone with access to the sheet may be able to see it, copy it, or expose it accidentally.

Step 2: Open Apps Script from Google Sheets

In your Google Sheet:

Click Extensions.
Click Apps Script.
Delete any starter code.
Paste the script below.
Save the project.

Google’s custom functions documentation confirms that custom functions are created from Extensions > Apps Script and can then be used in Sheets like built-in functions.

Step 3: Store Your API Key in Script Properties

In Apps Script:

Open Project Settings.
Find Script Properties.
Add a property named:

DEEPSEEK_API_KEY

Paste your DeepSeek API key as the value.
Save.

Apps Script’s Properties service stores key-value data scoped to a script, user, or document, and is commonly used for configuration values.

For shared business spreadsheets, Script Properties are convenient but not a full secrets-management solution. If multiple editors can access the script project, consider using a backend proxy or a managed secrets system instead of exposing direct model API access inside the sheet.

Step 4: Add the Apps Script Code

const DEEPSEEK_API_URL = 'https://api.deepseek.com/chat/completions';
const DEFAULT_DEEPSEEK_MODEL = 'deepseek-v4-flash';

/**
 * Sends a prompt and optional cell input to DeepSeek.
 *
 * Example:
 * =DEEPSEEK("Summarize this in one sentence", A2)
 *
 * @param {string} instruction What you want DeepSeek to do.
 * @param {string|number|Array<Array<*>>} input Optional cell or range input.
 * @return {string} DeepSeek response text.
 * @customfunction
 */
function DEEPSEEK(instruction, input) {
  if (!instruction) {
    return 'Missing instruction.';
  }

  const inputText = normalizeSheetInput_(input);
  const userPrompt = inputText
    ? `${instruction}\n\nInput:\n${inputText}`
    : instruction;

  return callDeepSeek_(userPrompt, DEFAULT_DEEPSEEK_MODEL);
}

function callDeepSeek_(userPrompt, model) {
  const apiKey = PropertiesService
    .getScriptProperties()
    .getProperty('DEEPSEEK_API_KEY');

  if (!apiKey) {
    throw new Error('Missing DEEPSEEK_API_KEY in Apps Script Project Settings.');
  }

  const payload = {
    model: model || DEFAULT_DEEPSEEK_MODEL,
    messages: [
      {
        role: 'system',
        content: 'You process spreadsheet data. Return only the requested result. Do not add introductions or explanations unless asked.'
      },
      {
        role: 'user',
        content: userPrompt
      }
    ],
    thinking: {
      type: 'disabled'
    },
    stream: false,
    max_tokens: 500
  };

  const response = UrlFetchApp.fetch(DEEPSEEK_API_URL, {
    method: 'post',
    contentType: 'application/json',
    headers: {
      Authorization: `Bearer ${apiKey}`
    },
    payload: JSON.stringify(payload),
    muteHttpExceptions: true
  });

  const statusCode = response.getResponseCode();
  const responseText = response.getContentText();

  let data;
  try {
    data = JSON.parse(responseText);
  } catch (error) {
    throw new Error(`DeepSeek returned a non-JSON response: ${responseText.slice(0, 200)}`);
  }

  if (statusCode < 200 || statusCode >= 300) {
    const message = data.error && data.error.message
      ? data.error.message
      : responseText;

    throw new Error(`DeepSeek API error ${statusCode}: ${message}`);
  }

  if (
    !data.choices ||
    !data.choices[0] ||
    !data.choices[0].message ||
    !data.choices[0].message.content
  ) {
    return '';
  }

  return data.choices[0].message.content.trim();
}

function normalizeSheetInput_(input) {
  if (input === undefined || input === null) {
    return '';
  }

  if (Array.isArray(input)) {
    return input
      .map(row => row.join('\t'))
      .join('\n')
      .trim();
  }

  return String(input).trim();
}

Step 5: Use the Formula in Google Sheets

Try it on one row first:

=DEEPSEEK("Classify this feedback as Positive, Neutral, or Negative. Return one word only.", A2)

Other useful examples:

=DEEPSEEK("Summarize this in 12 words or fewer", A2)

=DEEPSEEK("Translate this to Spanish. Return only the translation.", A2)

=DEEPSEEK("Extract the product color, size, and material as JSON", A2)

=DEEPSEEK("Write an SEO title under 60 characters for this product", A2)

When Not to Use a Live `=DEEPSEEK()` Formula

A live AI formula is convenient, but it is not always the best design.

Avoid using one AI formula in every row if:

You have hundreds or thousands of rows.
The prompt requires long reasoning.
The output can be reused instead of recalculated.
You need audit logs.
You need retries after failures.
You need approval before sending data externally.
The spreadsheet is shared with many users.
The sheet contains personal, regulated, or confidential information.

Google warns that custom functions must return within 30 seconds, and that many custom function calls can slow down a spreadsheet because each call goes to the Apps Script server separately. Google recommends using range-based functions for repeated work where possible.

For larger jobs, use a menu-based Apps Script workflow, a no-code automation platform, or a backend service that processes rows in batches, stores results, and avoids recalculating completed work.

Best DeepSeek Model for Google Sheets Tasks

For most spreadsheet tasks, start with deepseek-v4-flash. It is usually the practical choice for classification, summarization, translation, extraction, and short-form generation because spreadsheet workflows often need speed and cost control.

Use deepseek-v4-pro when:

The task needs more complex reasoning.
Accuracy is more important than speed.
You are analyzing nuanced text.
You need higher-quality reasoning on messy or ambiguous inputs.
You are processing fewer rows but each row matters more.

DeepSeek’s current pricing table lists both V4 Flash and V4 Pro with support for thinking mode and non-thinking mode, JSON output, tool calls, and a 1M context length, but their prices and concurrency limits differ.

For spreadsheet formulas, consider disabling thinking mode unless you specifically need it. DeepSeek’s API reference says thinking can be set to enabled or disabled, and the sample code above disables it to reduce unnecessary verbosity and latency for simple spreadsheet outputs.

Practical Use Cases for DeepSeek AI in Google Sheets

Customer Feedback Classification

Use DeepSeek to turn messy survey responses into structured categories.

Example formula:

=DEEPSEEK("Classify this feedback into one category: Bug, Feature Request, Pricing, Support, UX, or Other. Return only the category.", A2)

Best for:

Product teams
Support teams
SaaS feedback analysis
App reviews
NPS comments

Sentiment Analysis

=DEEPSEEK("Classify the sentiment as Positive, Neutral, or Negative. Return one word only.", A2)

Use this for reviews, tickets, social comments, and survey responses. For regulated or sensitive feedback, anonymize the text first.

SEO Metadata Generation

=DEEPSEEK("Write a meta description under 155 characters for this page. Avoid hype.", A2)

Useful columns might include:

Column	Example
A	Page topic
B	Target keyword
C	Search intent
D	Generated meta title
E	Generated meta description
F	Human approval

Product Data Cleanup

=DEEPSEEK("Normalize this product title. Keep brand, model, size, color, and material. Remove marketing fluff.", A2)

Use this when product titles come from multiple suppliers and need a consistent format.

Keyword Clustering

=DEEPSEEK("Cluster this keyword into one of these groups: Informational, Commercial, Transactional, Navigational, Local. Return one group only.", A2)

For large SEO keyword lists, use batching instead of individual formulas to avoid slow recalculation.

Attribute Extraction

=DEEPSEEK("Extract color, size, material, and gender from this product description. Return compact JSON only.", A2)

If you ask for JSON, tell the model clearly to return JSON only. DeepSeek’s API reference supports JSON output mode, but strict JSON mode is not activated by prompt wording alone. For API calls that require valid JSON, include response_format: { "type": "json_object" } in the request body, instruct the model to produce JSON in the prompt, and set a suitable max_tokens value for the expected output.

Privacy and Security Checklist Before Sending Sheet Data to DeepSeek

Do not send sensitive spreadsheet data to any AI service just because the integration works technically.

DeepSeek’s privacy policy says its services are not designed or intended to process sensitive personal data and says users should not provide sensitive personal data to the services. It gives examples including health, sexuality, citizenship, immigration status, genetic or biometric data, children’s data, precise geolocation, and criminal membership.

Before using DeepSeek AI for Google Sheets, check:

Does the sheet contain personal data?
Does it contain customer, employee, financial, medical, legal, or confidential business data?
Do you have permission to send this data to an external AI provider?
Does your organization allow DeepSeek or the selected third-party add-on?
Are you using a third-party integration that has its own privacy policy?
Can you anonymize or minimize the data before sending it?
Can you send only the column needed for the task?
Do you need logging, approvals, or retention controls?
Do you need a private backend proxy rather than direct spreadsheet-to-AI calls?

If you are building an app or workflow for other people, DeepSeek’s Open Platform Terms say developers should disclose personal information processing rules to end users and obtain consent or another legal basis where required.

For business, EU, healthcare, legal, finance, school, government, or employee data, review vendor approval, data residency, consent, and your organization’s AI policy before sending spreadsheet content to DeepSeek or a third-party add-on.

Apps Script Limits and Performance Notes

Apps Script is useful, but it is not a full production backend.

Watch for these limits:

Issue	Why it matters	Practical fix
30-second custom function limit	Long AI responses may fail	Keep prompts short or use menu-based batch processing
Too many formulas	Sheets may call Apps Script many times	Process ranges or use workflow automation
API latency	AI responses are not instant	Use smaller prompts and shorter outputs
API cost	Every request can consume tokens	Test on a sample and estimate cost first
Recalculation	Formulas can re-run unexpectedly	Paste final results as values after approval
Shared sheets	API keys and script access can be risky	Use a backend proxy for teams
Quotas	Apps Script services have daily limits	Review Google quotas and design for retries

Google’s quota documentation says Apps Script services have daily quotas and limitations, quotas may vary by account type, and exceeding a quota can cause the script to throw an exception and stop execution.

Troubleshooting Common DeepSeek Google Sheets Errors

Error or symptom	Likely cause	How to fix
`Missing DEEPSEEK_API_KEY`	API key was not saved in Script Properties	Add `DEEPSEEK_API_KEY` in Apps Script Project Settings
HTTP 401	Wrong or missing API key	Generate a new key and update Script Properties
HTTP 402	Insufficient DeepSeek balance	Check your DeepSeek platform billing or balance
HTTP 400 or 422	Invalid request body or parameters	Check model name, JSON payload, and prompt format
HTTP 429	Too many requests or concurrency exceeded	Slow down requests, batch less aggressively, or add retries
Cell shows `#ERROR!`	Script exception or timeout	Open the cell note, Apps Script logs, or execution history
Formula stays slow	Too many AI formulas or long outputs	Reduce rows, shorten prompts, paste results as values
Unexpected output	Prompt is too vague	Specify format, tone, length, and allowed labels
Sensitive data concern	Data is being sent externally	Stop the workflow, anonymize data, or use an approved provider

DeepSeek’s official error-code page lists common API errors including 400 invalid format, 401 authentication failure, 402 insufficient balance, 422 invalid parameters, and 429 rate limit reached.

DeepSeek vs Gemini for Google Sheets

DeepSeek and Gemini can both be useful in spreadsheets, but they solve different problems.

Tool	Best for	Main advantage	Main limitation
DeepSeek via Apps Script	Custom formulas and API workflows	Flexible, model-controlled, customizable	Requires setup and external data transfer
DeepSeek via add-on	No-code AI formulas	Fastest non-technical setup	Depends on third-party permissions, pricing, and model support
DeepSeek via Zapier/Make/n8n	Trigger-based automation	Good for workflows, retries, and connected apps	Less natural for live cell formulas
Gemini in Sheets	Native Google Workspace AI	Built into Google Sheets for eligible users	Not DeepSeek and may be tied to Workspace/Gemini availability

Google’s current Sheets help page says eligible users can use =AI() or =Gemini() in Sheets for generation, summarization, categorization, sentiment analysis, and real-time information. Google also notes current AI-function limitations, including text-only responses and a selected-cell generation limit. Older rollout posts mentioned 200 selected cells, while the current help page now lists 350 selected cells.

Choose Gemini if you want the native Google experience. Choose DeepSeek if you specifically want DeepSeek’s models, API pricing, model behavior, or compatibility with your broader AI stack.

Recommended Setup by User Type

For Beginners

Use a reputable Google Workspace Marketplace add-on that clearly supports DeepSeek. Review permissions, pricing, privacy policy, and supported models before installing.

For Marketers and SEO Teams

Use Apps Script if you want repeatable formulas for metadata, product descriptions, keyword clustering, or content briefs. For thousands of rows, use a batch workflow and freeze results as values after review.

For Analysts

Use DeepSeek for text classification, normalization, summarization, and extraction. Keep the workflow auditable: input column, prompt column, output column, review column, and final approved column.

For Developers

Use Apps Script for lightweight prototypes. For production workflows, use a backend proxy that stores the API key securely, handles retries, validates prompts, logs usage, and controls which columns can be sent.

For Enterprises

Avoid direct spreadsheet-to-API calls unless approved. Use identity controls, a secure proxy, data minimization, approval workflows, and vendor review. Do not let each user paste API keys into spreadsheets.

A Safer Workflow for Bulk AI Processing

For high-volume processing, use this structure:

Column	Purpose
A	Row ID
B	Source text
C	Prompt type
D	AI output
E	Status
F	Human review
G	Final approved output
H	Notes

A good workflow:

Test on 5 rows.
Check output quality.
Estimate token cost.
Remove unnecessary personal or confidential data.
Run a small batch.
Review errors.
Scale gradually.
Paste final outputs as values.
Keep the original text and reviewed output separate.

This avoids the biggest spreadsheet AI mistake: adding a live AI formula to every row and hoping nothing recalculates unexpectedly.

Prompt Templates for DeepSeek in Google Sheets

Classification Prompt

Classify the text into exactly one of these categories:
Bug, Feature Request, Pricing, Support, UX, Other.

Return only the category.

Sentiment Prompt

Classify the sentiment as Positive, Neutral, or Negative.
Return one word only.

SEO Title Prompt

Write one SEO title under 60 characters.
Include the main keyword naturally.
Do not use clickbait.
Return only the title.

Product Cleanup Prompt

Rewrite this product title in a clean ecommerce format.
Keep only brand, product type, model, size, color, and material.
Remove promotional words.
Return one title only.

JSON Extraction Prompt

Extract the following fields as valid JSON only:
color, size, material, product_type, target_audience.

If a field is missing, use null.
Do not include markdown.

Best Practices for Better Outputs

Use clear constraints:

“Return one word only.”
“Return valid JSON only.”
“Use one sentence.”
“Do not add explanation.”
“Choose only from these labels.”
“If unsure, return Needs review.”
“Do not invent missing information.”

Avoid vague prompts:

Analyze this.

Use specific prompts:

Classify this support ticket into exactly one category: Billing, Bug, Login, Feature Request, Cancellation, or Other. Return only the category.

For spreadsheet workflows, predictable output is more valuable than creative output.

FAQ

Can I use DeepSeek AI in Google Sheets?

Yes. You can use DeepSeek AI in Google Sheets through Apps Script and the DeepSeek API, a third-party Google Workspace add-on, or a no-code automation platform such as Zapier, Make, or n8n.

Does Google Sheets have a native DeepSeek integration?

There is no clear official native Google Sheets + DeepSeek integration documented by Google or DeepSeek in the same way that Google documents Gemini features in Sheets. Use Apps Script, add-ons, or automation tools instead.

Can I create a formula like `=DEEPSEEK(A2)`?

Yes, you can create a custom function with Google Apps Script. Google Sheets supports Apps Script custom functions, and Apps Script supports URL Fetch for external web requests, but custom functions have limits such as execution time and recalculation behavior.

Do I need a DeepSeek API key?

You need a DeepSeek API key if you connect directly through Apps Script or your own backend. Some third-party add-ons may not require your own API key because they bill usage through their own system, but you should verify each add-on’s current pricing and privacy terms.

Is DeepSeek AI for Google Sheets free?

Not usually for API-based use at scale. DeepSeek API usage is token-based according to the official pricing page, and third-party add-ons or automation platforms may have their own pricing. Always check current pricing before running bulk jobs.

Which model should I use?

Start with deepseek-v4-flash for most spreadsheet tasks. Consider deepseek-v4-pro for harder reasoning tasks or higher-quality analysis. Avoid relying on older aliases such as deepseek-chat or deepseek-reasoner if you are setting up a new workflow, because DeepSeek’s docs say those names are scheduled for deprecation on July 24, 2026.

Is it safe to send Google Sheets data to DeepSeek?

It depends on the data and your organization’s rules. Do not send sensitive personal data, confidential business data, regulated data, or customer/employee information without review. DeepSeek’s privacy policy says the services are not designed or intended to process sensitive personal data.

Why is my `=DEEPSEEK()` formula slow?

The most common reasons are long prompts, large inputs, too many formulas recalculating at once, API latency, or Apps Script limits. For many rows, use batching or automation instead of one live AI formula per row.

What are the best alternatives?

For native Google Sheets AI, use Gemini in Sheets where available. For other model options, consider add-ons that support OpenAI, Claude, Gemini, DeepSeek, or multi-model providers. For production workflows, use your own backend or a no-code automation platform.

Final Recommendation

Use Apps Script + DeepSeek API if you want the most control over prompts, formulas, and model behavior. Use a Google Workspace Marketplace add-on if you want the fastest no-code setup. Use Zapier, Make, n8n, or an internal backend if your goal is reliable workflow automation rather than live cell formulas.

For most users, the best starting point is simple: test DeepSeek on five rows, review the output, estimate cost, remove sensitive data, and only then scale the workflow.