Every line, version by version
Opus 5.5 vs Claude Opus 5: prices per token, context window, benchmark scores, and what changed between the two versions.
Prices are read live from the provider pricing pages, so this table cannot go stale.
| Version | Status | Released | Input | Output | Cached | Context | Blended /1M | Sample /mo |
|---|---|---|---|---|---|---|---|---|
5.5 Price your own usage | Active | 2026-09-22 | $4.00 | $20.00 | $0.200 | 1,000K | $12.00 | $14.00 |
5 Listed in Anthropic's Legacy models section; superseded by Opus 5.5. Price your own usage | Legacy | — | $5.00 | $25.00 | $0.500 | 1,000K | $15.00 | $17.50 |
Sample cost = 1M input + 500K output tokens per month at list price. A model with a long-context band is priced on that band — the rule is printed in the row. Use the calculator below for your own workload.
The versions of this line that have a published, traceable score record. 15 benchmarks tracked
Claude Opus 5.5 leads on 4 of 4 shared benchmarks; Claude Opus 5.5 is ~20% cheaper per blended million tokens.
| Dimension | Claude Opus 5.5 | Claude Opus 5 |
|---|---|---|
| GPQA Diamond | — | 93.4% |
| HLE | 64.4% | 56.3% |
| Terminal-Bench 2.1 | — | 89.1% |
| Terminal-Bench 3.0 | — | 43.3% |
| Terminal-Bench 4.0 | 66.4% | 51.8% |
| DeepSWE v1.1 | — | 74% |
| ProgramBench | — | 37% |
| NL2Repo-Bench | — | 75.3% |
| ExploitGym | — | 22.1% |
| HLE (w/tools) | 67.7% | 63.6% |
| Automation-Bench | — | 50.3% |
| Agents' Last Exam | — | 28.6% |
| Chartography (w/tools) | 89% | 84% |
| BabyVision (w/tools) | — | 94.1% |
| ZeroBench-main (w/tools) | — | 52% |
| Blended price | $12.00 /1M | $15.00 /1M |
| Full priceInput · Output · Cached input | $4.00 · $20.00 · $0.200 | $5.00 · $25.00 · $0.500 |
| Context window | 1,000K | 1,000K |
Transcribed from the sources named on each leaderboard entry. Coverage differs per version; a missing cell means the source did not report that benchmark.
Adjust the monthly volume — every version of the line recomputes instantly.
List price only: cached input, batch discounts and off-peak rates are not included. The sample column prices 1M input + 500K output tokens per month.