Models · scorecard

Claude Opus 5

What the vendor claims, next to what independent boards measured. The two are never mixed in one column.

At a glance

Source: OpenRouter, as of Oct 5, 03:00 UTC. Model page on OpenRouter

Quoted word for word from the vendor's own launch post or model card. Claims, not measurements.

No vendor claims recorded yet. They come from launch posts and model cards the Drops covered.

Measured by Epoch AI or LMArena, not by the vendor. "Listed as" is the source's own name for the model, so you can check our match.

Independent benchmark results for this model, each with its source and date
Board	Result	Rank
Epoch AI · GPQA diamondListed as: claude-opus-5_maxSource: Epoch AI (CC BY), as of Oct 5, 2026. Source	93.9%Accuracy	14
Epoch AI · FrontierMath-Tiers-1-3-v2-PrivateListed as: claude-opus-5_maxSource: Epoch AI (CC BY), as of Oct 5, 2026. Source	85.6%Accuracy	11
Epoch AI · FrontierMath-Tier-4-v2-PrivateListed as: claude-opus-5_maxSource: Epoch AI (CC BY), as of Oct 5, 2026. Source	73.2%Accuracy	17
Epoch AI · SimpleQA VerifiedListed as: claude-opus-5_maxSource: Epoch AI (CC BY), as of Oct 5, 2026. Source	59.9%Accuracy	16
Epoch AI · OTIS Mock AIME 2024-2025Listed as: claude-opus-5_maxSource: Epoch AI (CC BY), as of Oct 5, 2026. Source	98.9%Accuracy	17
Epoch AI · Epoch Capabilities IndexListed as: Claude Opus 5Source: Epoch AI (CC BY), as of Oct 5, 2026. Source	162.94Index	5
LMArena · Text (style control)Listed as: claude-opus-5-highLMArena (CC BY 4.0), as of Oct 2, 2026. Source	1,490Arena score	13
LMArena · WebDevListed as: claude-opus-5-highLMArena (CC BY 4.0), as of Oct 1, 2026. Source	1,660Arena score	12
LMArena · VisionListed as: claude-opus-5-highLMArena (CC BY 4.0), as of Oct 2, 2026. Source	1,321Arena score	2
LMArena · AgentListed as: Claude Opus 5 (High)LMArena (CC BY 4.0), as of Oct 2, 2026. Source	0.0867Score	7

No Drop has covered this model yet.