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Claude Opus 5 vs Sakana Namazu

Compare Claude Opus 5 from Anthropic and Sakana Namazu from sakana on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

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Claude Opus 5 vs Sakana Namazu: side-by-side summary

Claude Opus 5 and Sakana Namazu are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Opus 5, from Anthropic, has a 1,000,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.

Sakana Namazu, from sakana, has a 262,144-token context window and is priced at $0.95/M tokens input, $4/M tokens output on OpenRouter.

Context window
  • Claude Opus 5: 1,000,000 tokens
  • Sakana Namazu: 262,144 tokens
Price
  • Claude Opus 5: $5/M tokens input, $25/M tokens output
  • Sakana Namazu: $0.95/M tokens input, $4/M tokens output
Provided by
  • Claude Opus 5: Anthropic
  • Sakana Namazu: sakana
Favicon for anthropic
Claude Opus 5
Favicon for sakana
Sakana Namazu
Favicon for anthropic
Claude Opus 5
Favicon for sakana
Sakana Namazu

Overview

Claude Opus 5
Author
Anthropic
Sakana Namazu
Author
sakana
Claude Opus 5
Context length
1Mtokens
Sakana Namazu
Context length
262Ktokens
Claude Opus 5
Reasoning
Sakana Namazu
Reasoning
Claude Opus 5
Input modalities
Sakana Namazu
Input modalities
Claude Opus 5
Output modalities
Sakana Namazu
Output modalities
model details, providers and pricing
model details, providers and pricing
Claude Opus 5
Sakana Namazu