Claude Fable 5.1 vs Gemini 3.8 Live Extended Thinking

Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.

Specs & pricing

Claude Fable 5.1Gemini 3.8 Live Extended Thinking
CompanyAnthropicGoogle DeepMind
ReleasedSep 2026Sep 2026
Context window1.0M
Input /1M tokens$10$0.75
Output /1M tokens$50$3
Open weightsNoNo

Benchmarks

BenchmarkClaude Fable 5.1Gemini 3.8 Live Extended Thinking
GPQA93.7%
Speed (tok/s)70 tok/s

Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.