Copy-paste Claude formulas for Google Sheets
Pick Claude Opus 4.8 in GPT for Sheets, drop a formula into row 2, then drag it down to run it across every row.
Summarize long text
A: long text to condense
=CLAUDE("Summarize this in 2 clear sentences: " & A2)
Deep analysis
A: topic, proposal, or data to weigh
=CLAUDE("Give a balanced analysis with key pros, cons, and a recommendation: " & A2)
Clean & rewrite
A: rough or messy text
=CLAUDE("Rewrite this clearly, fix grammar, and keep the meaning: " & A2)
Is Claude Fable 5 available in Google Sheets?
You can use Claude Fable 5 in Google Sheets with a =CLAUDE() formula (once access is restored). Fable 5 is Anthropic’s newest, most capable model (released June 2026), but access is currently disabled worldwide (a US export-control directive shortly after launch), so it isn’t usable in any product yet — including Google Sheets. Meanwhile, use Claude Opus 4.8 — the most powerful Claude you can run today — in the exact same formula.
The good news: you don’t have to wait to put Claude to work in your spreadsheet. GPT for Sheets already runs Claude Opus 4.8 — Anthropic’s most powerful available model — plus GPT-5.5, Gemini 3, Grok 4.3, DeepSeek V4 and 100+ others, directly in cells. And the moment Fable 5 reopens, you’ll use it exactly the same way: a simple =CLAUDE() formula.
- Can I select Fable 5 in GPT for Sheets? Not while access is suspended. Today you pick Claude Opus 4.8 (or Sonnet 4.6 / Haiku 4.5) in the model dropdown.
- Will Fable 5 be added automatically? When Anthropic reopens access, Fable 5 will appear as a selectable Claude model — your existing
=CLAUDE()formulas won’t need to change. - What’s the best Claude model I can use right now? Opus 4.8 — the strongest available Claude model, ideal for analysis, summarization, and high-quality writing across spreadsheet rows.
What is Claude Fable 5?
Claude Fable 5 is Anthropic’s first widely-released “Mythos-class” model, reported to beat Opus 4.8 on several benchmarks with a ~1M-token context window. Days after launch, Anthropic suspended access to Fable 5 (and its sibling, Mythos 5) worldwide following a government export-control directive. There’s no public timeline for its return — this page will be updated when it’s available.
Until then, the practical path to “Claude in Google Sheets” is Claude Opus 4.8 via GPT for Sheets.
Use Claude in Google Sheets today
Install GPT for Sheets and run Claude, GPT-5.5, Gemini, Grok, and Perplexity formulas directly in cells. Best for analysis, summaries, rewriting, lead research, and bulk enrichment.
Setup in under 2 minutes: Install GPT for Sheets → open the sidebar in Google Sheets → choose Claude and pick Opus 4.8 → add your Anthropic API key → run =CLAUDE() formulas across entire columns. No Zapier, no Apps Script, no copy-pasting between tabs.
Best for: long-document summarization, nuanced analysis, careful rewriting, classification, and turning rows of leads, reviews, products, or research into usable output.
Frequently asked questions
Can I use Claude Fable 5 in Google Sheets right now? No — Fable 5 access is suspended worldwide as of June 2026. Use Claude Opus 4.8 in GPT for Sheets instead; it’s the most powerful Claude model currently available.
How do I run Claude in Google Sheets?
Install GPT for Sheets, open the sidebar, choose Claude (Opus 4.8), add your Anthropic API key, and write =CLAUDE("your prompt " & A2) in any cell.
Do I need Apps Script or Zapier? No. GPT for Sheets connects Claude to Google Sheets natively from the add-on sidebar.
Which Claude models are supported? Claude Opus 4.8 (best quality), Sonnet 4.6 (balanced), and Haiku 4.5 (fastest). Fable 5 will be added when Anthropic restores access.
Can I use other models too? Yes — the same add-on runs GPT-5.5, Gemini 3, Grok 4.3, DeepSeek V4, Mistral, Perplexity, and any model via OpenRouter.