Claude Fable 5.1 vs Gemini 4 Carbon: API pricing

As of Nov 10, 2026, Claude Fable 5.1 costs $10.00 input / $50.00 output per million tokens from Anthropic, and Gemini 4 Carbon costs $2.00 / $10.00 from Google. For 10M input and 2M output tokens a month, Claude Fable 5.1 comes to $200.00 and Gemini 4 Carbon to $40.00, so Gemini 4 Carbon is 80% cheaper than Claude Fable 5.1. On LMArena, Gemini 4 Carbon scores higher, 1538 against 1512.

DetailClaude Fable 5.1Gemini 4 Carbon
Est. per month$200.00official price$40.00official priceCheaper
MakerAnthropicGoogle
Official input / output$10.00 / $50.00per million tokens$2.00 / $10.00per million tokens
Cached input$0.25$0.10
Cheapest provider$10.00 / $50.00Anthropic$2.00 / $10.00Google Gemini
Providers124
Context1M1.05M
LMArena overall1512 · #41538 · #1
LMArena coding1527 · #91563 · #1
FeaturesVisionReasoningTool callingWeb searchVisionReasoningTool callingWeb search

Every provider's price: Claude Fable 5.1 · Gemini 4 Carbon

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