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Models/claude-opus-5

Claude Opus 5

First on Android Bench 1.0 at 91.8%. Its best WebDev row is seventh. Opus 5.5, not this model, leads the long-horizon board.

Anthropic · Proprietary · Context 1M · $5 / $25 per million tokens · Fetched 2026-10-10

LMArena WebDev
1691
#7 / 142 · ±6
LMArena Image-to-WebDev
1661
#7 / 64 · ±10
Terminal-Bench 4.0
53.9%
#11 / 35 · ±3.2

Benchmark scores

Boards older than 90 days are not counted as recommendations
BenchmarkSettingScoreRankCostAs of
LMArena WebDevmax1691±6#7—2026-10-08
LMArena Image-to-WebDevmax1661±10#7—2026-10-09
Terminal-Bench 4.0xhigh · Claude Code53.9±3.2#11$6.1k2026-10-06
The Slop Index—44#36—2026-10-11
Convex Evals1 run80.36#4$4.532026-10-08
ReactBenchmax42.138.6–45.5#7$5.942026-10-10
DeepSWE v1.1max · mini-swe-agent73.669.8–77.5#3$11.842026-09-22
SWE-bench Verified—This board has stopped updating——2026-02-26
Aider Polyglot—This board has stopped updating——2025-11-20

Use it or not

Why
  • First on standard Android tasks, the steadier pick for everyday features and migrations.
When not
  • The top four sit between 90.2% and 91.8% with overlapping intervals. Long-horizon work belongs to Opus 5.5.

Appears in these scenarios

Collected from scenario boards
Build a Web frontend#3DeepSWE 73.6%Build an Android app#3DeepSWE 73.6%Write CLI, scripts, and DevOps#3DeepSWE 73.6%Write docs & copy#36Slop Index 44

Peers