specs at a glance
| Leaderboard rank | #1 of 18 |
|---|---|
| SWE-bench Verified | 97.0% |
| SWE-bench Pro | — |
| Terminal-Bench | — |
| Input price / 1M | $5 |
| Output price / 1M | $25 |
| Context window | — |
| Open weights | No |
| Access | API (claude-opus-5) · Claude Code · Claude Cowork · claude.ai (Pro, Max) |
| Maker | Anthropic |
how good is Claude Opus 5 at coding?
Claude Opus 5 holds the #1 spot on our leaderboard with 97.0% on SWE-bench Verified — the highest confirmed score of any model we track.
Score provenance: Independent (vals.ai, observed Jul 25 2026, mini-swe-agent bash-only harness): SWE-bench Verified 97.00% ±0.76, the highest score on the board and 1st of the 75 systems vals.ai has run. Entered ranked Jul 25, 2026 after one day unranked: Anthropic published no SWE-bench Verified number at launch and still has not, so this is vals.ai's own measurement rather than a vendor claim. Read the #1 as a three-way tie, not a win — GPT-5.6 Sol is at 96.20% ±0.86 (a 0.8-point gap, ~0.7 sigma) and Claude Fable 5 at 95.00% ±0.98 (2.0 points, ~1.6 sigma), both inside the combined margin of error. We rank Opus 5 first only because it scored highest. Where the top two genuinely separate is task length, and not in Opus 5's favour: on the 1-to-4-hour tier Sol solves 98% against Opus 5's 90%, while Opus 5 leads on shorter work (98% under 15 minutes and 97% on 15-minute-to-1-hour tasks, vs 97% and 95% for Sol). Released Jul 24, 2026 at $5/$25 per 1M, the same price as Opus 4.8 and half of Fable 5. Anthropic's launch claims stay unreproducible (Frontier-Bench v0.1, CursorBench 3.2 and Zapier AutomationBench are proprietary), so this is the first externally checkable score the model has. Fast mode runs about 2.5x default speed at 2x base price.
what does Claude Opus 5 cost?
$5 per 1M input tokens and $25 per 1M output — #13 cheapest of the 17 models we track. Coding workloads are output-heavy, so weight the output rate when budgeting. Run your own volume through the AI API cost calculator for a monthly estimate.
where can you use it?
Available via API (claude-opus-5) · Claude Code · Claude Cowork · claude.ai (Pro, Max). As a proprietary model, you're on the maker's infrastructure and release schedule.
head-to-head
Full storyAnthropic Ships Claude Opus 5 at Half of Fable 5’s Price
Ranked on our AI Coding Leaderboard — scores confirmed against primary sources only, updated 2026-07-25.