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Claude Fable 5.1 vs Ternary Bonsai 2 27B

Compare Claude Fable 5.1 from Anthropic and Ternary Bonsai 2 27B from Prism Ml on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for anthropic
Claude Fable 5.1
Favicon for prism-ml
Ternary Bonsai 2 27B
Favicon for anthropic
Claude Fable 5.1
Favicon for prism-ml
Ternary Bonsai 2 27B

Overview

Claude Fable 5.1
Author
Anthropic
Ternary Bonsai 2 27B
Author
Prism Ml
Claude Fable 5.1
Context length
1Mtokens
Ternary Bonsai 2 27B
Context length
262Ktokens
Claude Fable 5.1
Reasoning
Ternary Bonsai 2 27B
Reasoning
Claude Fable 5.1
Input modalities
Ternary Bonsai 2 27B
Input modalities
Claude Fable 5.1
Output modalities
Ternary Bonsai 2 27B
Output modalities

Claude Fable 5.1 vs Ternary Bonsai 2 27B: side-by-side summary

Claude Fable 5.1 and Ternary Bonsai 2 27B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Fable 5.1, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.

Ternary Bonsai 2 27B, from Prism Ml, has a 262,144-token context window and is priced at $0.075/M tokens input, $0.50/M tokens output on OpenRouter.

Context window
  • Claude Fable 5.1: 1,000,000 tokens
  • Ternary Bonsai 2 27B: 262,144 tokens
Price
  • Claude Fable 5.1: $10/M tokens input, $50/M tokens output
  • Ternary Bonsai 2 27B: $0.075/M tokens input, $0.50/M tokens output
Provided by
  • Claude Fable 5.1: Anthropic
  • Ternary Bonsai 2 27B: Prism Ml
model details, providers and pricing
model details, providers and pricing
Claude Fable 5.1
Ternary Bonsai 2 27B