Models

Showing 6 models. Most popular is estimated US search interest over recent months, as of Oct 24, 2026. Searches for a family name count toward its current versions, and an older version ranks below the one that replaced it.

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  Claude Opus 5.5

  Model at Anthropic · Claude Opus family

  Limits change: Perplexity Agent API xhigh effort raises max steps from 100 to 300 · 3d

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  Claude Opus 5

  Model at Anthropic · Claude Opus family

  Benchmark: Arena text leaderboard: Gemini 4 Argon first, Opus 5.5 second, GPT-6 Astra 73rd · 1w

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  Claude Opus 4.8

  Model at Anthropic · Claude Opus family

  Retiring: Claude Opus 4.8 fast mode is deprecated and ends November 30, 2026 · 2d

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  Claude Opus 4.7

  Model at Anthropic · Claude Opus family

  GitHub: Copilot removes Claude Opus 4.7, Kimi K2.7 Code, Gemini 3.5 Flash and 3.6 Flash · Oct 2, 2026

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  Claude Opus 4.6

  Model at Anthropic · Claude Opus family

  Breaking change: Fast mode removed for Claude Opus 4.6 · Jun 29, 2026

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  Claude Opus 4.5

  Model at Anthropic · Claude Opus family

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