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Schematron V2 Small vs Claude Fable 5.1

At a glance

Inference.net's extraction specialist tuned for quality: a 3B model that turns HTML pages into structured JSON.

128K ctx$0.05/$0.23 per M

Anthropic's upgraded Mythos-class flagship, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work.

1M ctx$10.00/$50.00 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
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper100%
Reasoning & Knowledge
Expert-Level—Factual Recall—
Math
Competition Math—
Agentic
Novel Reasoning—
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Reasoning & Knowledge
Expert-Level46.5%Factual Recall70.8%
Math
Competition Math100.0%
Agentic
Novel Reasoning90.0%
Specs
128K
Context
4K
Max output
Sep 2026
Released
1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input99%$0.05/M tokens
Output100%$0.23/M tokens
Cache read80%$0.05/M tokens
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$0.25/M tokens
Cache write$12.50/M tokens
Web search$0.01/search
Chat with Schematron V2 SmallGo to model
Chat with Claude Fable 5.1Go to model
Frequently Asked Questions: Schematron V2 Small vs Claude Fable 5.1▼

Which is better, Schematron V2 Small or Claude Fable 5.1?

▼

Both Schematron V2 Small and Claude Fable 5.1 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, Schematron V2 Small or Claude Fable 5.1?

▼

Schematron V2 Small has a lower blended cost. Schematron V2 Small: $0.05 input / $0.23 output. Claude Fable 5.1: $10.00 input / $50.00 output.

Which has a larger context window, Schematron V2 Small or Claude Fable 5.1?

▼

Claude Fable 5.1 has a larger context window: Schematron V2 Small supports 128K tokens vs Claude Fable 5.1 at 1M tokens.

Do both Schematron V2 Small and Claude Fable 5.1 support vision?

▼

Claude Fable 5.1 supports vision/image input, but Schematron V2 Small does not.

What are the key differences between Schematron V2 Small and Claude Fable 5.1?

▼

Key differences: Schematron V2 Small is significantly cheaper; only Claude Fable 5.1 supports vision input; only Claude Fable 5.1 offers extended reasoning mode. 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 Schematron V2 Small and Claude Fable 5.1 for free on idapt.app to see which performs better for your specific needs.

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