Claude 4 Opus

Name: Claude 4 Opus
Price: 20 USD
Availability: InStock
Rating: 58.5 (1 reviews)
Author: Anthropic

#486MultimodalProprietary

Anthropic

Previous Claude 4 flagship retained for compatibility after later Claude Opus releases. Delivers strong reasoning and multi-step problem solving, but superseded by Claude Opus 4.7 for Anthropic's latest flagship performance.

Model updates refreshed12h agoMay 20, 2026news + changelog

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58.5

Quality Score

1350

Arena ELO

Undisclosed

Parameters

200K

Context

Benchmarks and Competitive Signal

Structured

Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.

This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.

GPQAreasoning

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Official Benchmark Evidence

These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.

claude-4-opus-20250514 - SWE-Bench Verified

Benchmarksswe-benchMay 20, 2026

SWE-Bench Verified resolved rate 73.2

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Claude 4 Opus Benchmark Update

Benchmarksartificial-analysisMay 18, 2026

Quality: 91/100 | Speed: 45/100 | Price: $15/M tokens | MMLU: 91% | HumanEval: 91.5%

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Claude 4 Opus Benchmark Update

Benchmarksartificial-analysisMay 17, 2026

Quality: 91/100 | Speed: 45/100 | Price: $15/M tokens | MMLU: 91% | HumanEval: 91.5%

View source