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Claude Fable 5 vs Gemini 3.1 Pro

List-price comparison · Claude Fable 5 details · Gemini 3.1 Pro details

For a typical workload (100,000 requests / mo), Gemini 3.1 Pro costs 78% less $720.00/mo vs $3,200.00/mo.

 Claude Fable 5Gemini 3.1 Pro
Input / 1M tokens$10.00$2.00
Output / 1M tokens$50.00$12.00
Typical request (1,200 in + 400 out)$0.032$0.0072
Context window1M tokens1,048,576 tokens
Max output128k tokens65,536 tokens
TierFlagshipFlagship
ProviderAnthropicGoogle

Projected monthly cost

Rows open both models in the calculator — adjust volume and token counts there.

Claude Fable 5

Auto-synced from OpenRouter — no editorial write-up yet.

Gemini 3.1 Pro

Native audio, video, and document understanding with a ~1M token context window — strong fit for multi-modal RAG and large-document analysis.

Output token cost is steep relative to input, and the largest context windows can be slow to fill — chunk large documents where possible.

More comparisons

Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.