Claude Opus 4.6
Anthropic
The proven workhorse: near-top quality with the deepest vote history in the top 3.
Ranked #2 of 402 on LMArena's overall board (style control) · retrieved 2026-09-19
The numbers
Arena Score (LMArena, style control)1504.6 (1501–1508.1, 71,993 votes)
Coding board score1551.3 (#3, 18,766 votes)
Price per 1M tokens in/out (LMArena)$5 / $25
Context window~1M
LicenseProprietary
Exact source entries: LMArena “claude-opus-4-6-high”, retrieved 2026-09-19.
Try or learn moreHonest read
Best at
- Arena Score 1505 — statistically tied with #1
- 72,000 human votes behind the score — the most battle-tested entry near the top
- Half the price of Fable 5: $5 / $25 per million tokens
Not the pick for
- Never quite beats its sibling Fable 5 head-to-head
- Anthropic's lineup is crowded — 4.6 vs 4.7 vs 5 is a near-tie you must break yourself
Choose it if you are
Teams that want top-3 quality, a long track record, and a saner bill.
Rankings come from the sources above; this plain-language read is our editorial summary of those numbers.
Compare with the leaders
Best image
Text-to-image, by blind human votes
GPT-Image 2.5 (Sunburst) · Arena Score 1421
View winner
Best video
Text-to-video, by blind human votes
Gemini Omni 1.1 Flash · Arena Score 1515
View winner
Best code
Coding, by blind human votes
Claude Fable 5 · Arena Score 1552
View winner
Best reasoning
Highest Intelligence Index we track
Claude Fable 5.1 · Index 53.4
View winner
Best open model
Open weights, by human votes
Kimi K3 · Arena Score 1485
View winner
Best value
Intelligence per dollar
GLM 5.3 Flash · 176 pts / $1M
View winner