#69Anthropic· released 2026-07-24

Claude Opus 5 (Fast).

Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

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Context
1.0M
Input $/1M
$10.00
Output $/1M
$50.00
Modality
text · image · file

Benchmarks

How these are aggregated →
Arena Elo
1629
LMArena — human blind votes
AA Index
69.0
Artificial Analysis composite
LiveBench
84.8
Contamination-resistant
GPQA
90.5%
Grad-level science reasoning
MMLU-Pro
89.6%
Broad knowledge
SWE-bench
80.5%
Real GitHub bugs (Verified)
Terminal-Bench
66.8%
Agentic shell tasks
ARC-AGI
35.4%
Abstract reasoning
Aider Polyglot
88.0%
Multi-language code editing
Speed
79 tok/s
Median output speed

Profile

Claude Opus 5 (Fast) is Anthropic's entry at position #69 on the current aggregated leaderboard. Its strongest signals are human preference voting, graduate-level science reasoning, real-world software engineering, and unattended agentic work. Every figure below is aggregated from the public sources listed on the homepage and refreshed on each pipeline run.

The score spread is comparatively complete for this model, but the standing advice still applies: treat gaps of a few points as ties and validate on your own workload before committing.

How this model's position is computed is documented in the methodology; what each benchmark actually measures is in the benchmark guide. See a figure that disagrees with its source? Report it — accepted corrections apply on the next refresh.

Nearby on the leaderboard