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  1. Home
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  3. Compare

Aion 3.5 vs Claude Fable 5.1

Compare Aion 3.5 from Aion Labs and Claude Fable 5.1 from Anthropic 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 aion-labs
Aion 3.5
Favicon for anthropic
Claude Fable 5.1
Favicon for aion-labs
Aion 3.5
Favicon for anthropic
Claude Fable 5.1

Overview

Aion 3.5
Author
Aion Labs
Claude Fable 5.1
Author
Anthropic
Aion 3.5
Context length
262Ktokens
Claude Fable 5.1
Context length
1Mtokens
Aion 3.5
Reasoning
Claude Fable 5.1
Reasoning
Aion 3.5
Input modalities
Claude Fable 5.1
Input modalities
Aion 3.5
Output modalities
Claude Fable 5.1
Output modalities

Aion 3.5 vs Claude Fable 5.1: side-by-side summary

Aion 3.5 and Claude Fable 5.1 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Aion 3.5, from Aion Labs, has a 262,144-token context window and is priced at $3/M tokens input, $6/M tokens output on OpenRouter.

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.

Context window
  • Aion 3.5: 262,144 tokens
  • Claude Fable 5.1: 1,000,000 tokens
Price
  • Aion 3.5: $3/M tokens input, $6/M tokens output
  • Claude Fable 5.1: $10/M tokens input, $50/M tokens output
Provided by
  • Aion 3.5: Aion Labs
  • Claude Fable 5.1: Anthropic
  • model details, providers and pricing
  • model details, providers and pricing
Aion 3.5
Claude Fable 5.1