Claude Opus 5vsClaude Opus 4.6
Across 4 shared benchmarks, Claude Opus 5 leads overall: Claude Opus 5 wins 4, Claude Opus 4.6 wins 0, with 0 ties and an average score difference of +100.73.
Claude Opus 5
Anthropic · 2026-07-24 · Reasoning model
Claude Opus 4.6
Anthropic · 2026-02-05 · Reasoning model
Claude Opus 54 wins(100%)(0%)0 winsClaude Opus 4.6
Benchmark scores
Grouped by capability, sorted by largest gap within each. 4 shared benchmarks.
Math and Reasoning
Claude Opus 5 2/2| Benchmark | Claude Opus 5 | Claude Opus 4.6 | Diff |
|---|---|---|---|
| FrontierMath Tier 4 v2 | 73.176 / 42Max (No Tools) | 26.8323 / 42Max (No Tools) | +46.34 |
| FrontierMath v2 | 85.615 / 58Max (No Tools) | 65.9618 / 58Max (No Tools) | +19.65 |
Coding and Software Engineer
Claude Opus 5 1/1| Benchmark | Claude Opus 5 | Claude Opus 4.6 | Diff |
|---|---|---|---|
| WeirdML v2 | 86.344 / 52Normal (With Tools) | 65.9023 / 52Normal (With Tools) | +20.44 |
Writing and Creative Capabilities
Claude Opus 5 1/1| Benchmark | Claude Opus 5 | Claude Opus 4.6 | Diff |
|---|---|---|---|
| Creative Writing | 2,1213 / 106Normal (No Tools) | 1,80419 / 106Normal (No Tools) | +316.50 |
Specs
| Field | Claude Opus 5 | Claude Opus 4.6 |
|---|---|---|
| Publisher | Anthropic | Anthropic |
| Release date | 2026-07-24 | 2026-02-05 |
| Model type | Reasoning model | Reasoning model |
| Architecture | Dense | Dense |
| Parameters | Not available | Not available |
| Context length | 1M | 1000K |
| Max output | 128K | 64K |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | Claude Opus 5 | Claude Opus 4.6 |
|---|---|---|
| Text input | $5 / 1M tokens | $5 / 1M tokens |
| Text output | $25 / 1M tokens | $25 / 1M tokens |
| Cache read | $0.5 / 1M tokens | $0.5 / 1M tokens |
| Cache write | $6.25 / 1M tokens | $6.25 / 1M tokens |
Summary
- Claude Opus 5leads in:Math and Reasoning (2/2), Coding and Software Engineer (1/1), Writing and Creative Capabilities (1/1)
On average across the 4 shared benchmarks, Claude Opus 5 scores 100.73 higher.
Largest single-benchmark gap: Creative Writing — Claude Opus 5 2,121 vs Claude Opus 4.6 1,804 (+316.50).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.