Model comparison

Claude Fable 5.1 vs Gemini 3.8 Flash

Compare Claude Fable 5.1 (Anthropic) and Gemini 3.8 Flash (Google) by price, context, capabilities, and latency.

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Price deadline

Gemini Flash prices rise Jan 1, 2027

Per Google's published pricing page, Gemini Flash input prices double on Jan 1, 2027. The same workload runs an order of magnitude cheaper on DeepSeek and GLM. Source: Google pricing Full price breakdown

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Which should you pick?

  • Price: Gemini 3.8 Flash is cheaper ($0.75 / 1M tokens input / $3.75 / 1M tokens output) vs Claude Fable 5.1 ($10 / 1M tokens input / $50 / 1M tokens output).

Side by side

Claude Fable 5.1 vs Gemini 3.8 Flash — full comparison

Compare price, provider, context, capabilities, latency, and source basis.

ModelProviderInputOutputContextCapabilitiesBest forLatencyStatusSource
Claude Fable 5.1anthropic/claude-fable-5.1Anthropic$10 / 1M tokens$50 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat3187-5152msCatalogPlatform curated
Gemini 3.8 Flashgoogle/gemini-3.8-flashGoogle$0.75 / 1M tokens$3.75 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1695-3603msCatalogPlatform curated

FAQ

Claude Fable 5.1 vs Gemini 3.8 Flash FAQ

Is Claude Fable 5.1 or Gemini 3.8 Flash cheaper?

Gemini 3.8 Flash is cheaper ($0.75 / 1M tokens input / $3.75 / 1M tokens output) vs Claude Fable 5.1 ($10 / 1M tokens input / $50 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.

Which has a larger context window, Claude Fable 5.1 or Gemini 3.8 Flash?

Both offer the same context window: 1M tokens.

Claude Fable 5.1 vs Gemini 3.8 Flash for Vision: which should I pick?

Both target Vision. Pick Gemini 3.8 Flash to optimize cost, or Claude Fable 5.1 for the longer context window. Test both on real prompts before committing production traffic.

Claude Fable 5.1 detailsGemini 3.8 Flash detailsPricing calculatorOpenAI-compatible quickstart

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