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Claude Fable 5 vs Gemini 2.5 Flash Lite (09-2025)

At a glance

Anthropic's Mythos-class flagship for ambitious, long-running professional work.

921M ctx$10.00/$50.00 per M#2/92

Earlier Gemini 2.5 Flash Lite preview from September 2025.

1.0M ctx$0.10/$0.40 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI91.6
Reasoning & Knowledge
Factual Recall68.3%
Math
Competition Math99.7%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper99%
Capability
Capability—
Reasoning & Knowledge
Factual Recall—
Math
Competition Math—
Specs
1M
Context
128K
Max output
Jun 2026
Released
1.0M
Context
66K
Max output
Sep 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$1.00/M tokens
Cache write$12.50/M tokens
Web search29%$0.01/search
Live pricing, shown before you run
Input99%$0.10/M tokens
Output99%$0.40/M tokens
Reasoning$0.40/M tokens
Cache read99%$0.01/M tokens
Cache write99%$0.08/M tokens
Image input$0.10/M tokens
Audio input$0.30/M tokens
Web search$0.01/search
Chat with Claude Fable 5Go to model
Chat with Gemini 2.5 Flash Lite (09-2025)Go to model
Frequently Asked Questions: Claude Fable 5 vs Gemini 2.5 Flash Lite (09-2025)▼

Which is better, Claude Fable 5 or Gemini 2.5 Flash Lite (09-2025)?

▼

Both Claude Fable 5 and Gemini 2.5 Flash Lite (09-2025) are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Claude Fable 5 or Gemini 2.5 Flash Lite (09-2025)?

▼

Gemini 2.5 Flash Lite (09-2025) has a lower blended cost. Claude Fable 5: $10.00 input / $50.00 output. Gemini 2.5 Flash Lite (09-2025): $0.10 input / $0.40 output.

Which has a larger context window, Claude Fable 5 or Gemini 2.5 Flash Lite (09-2025)?

▼

Gemini 2.5 Flash Lite (09-2025) has a larger context window: Claude Fable 5 supports 1M tokens vs Gemini 2.5 Flash Lite (09-2025) at 1M tokens.

Do both Claude Fable 5 and Gemini 2.5 Flash Lite (09-2025) support vision?

▼

Yes, both Claude Fable 5 and Gemini 2.5 Flash Lite (09-2025) support vision/image input.

What are the key differences between Claude Fable 5 and Gemini 2.5 Flash Lite (09-2025)?

▼

Key differences: Gemini 2.5 Flash Lite (09-2025) is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Fable 5 and Gemini 2.5 Flash Lite (09-2025) for free on idapt.app to see which performs better for your specific needs.

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