Claude Opus 4.5 vs SWE-1.7
Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
SWE-1.7 leads for most workloads.
Based on BenchLM composite scores, July 2026.
Claude Opus 4.5
73
SWE-1.7
75
Verified leaderboard positions: Claude Opus 4.5 #20 · SWE-1.7 unranked
Pick SWE-1.7 if you want the stronger benchmark profile. Claude Opus 4.5 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Claude Opus 4.5 | Δ | SWE-1.7 |
|---|---|---|---|
| Agentic | 62.6 | → 18.9 | 81.5 |
| Coding | 66.0 | — | — |
| Reasoning | 64.4 | — | — |
| Knowledge | 58.5 | — | — |
| Math | 90.2 | — | — |
| Multilingual | 85.7 | — | — |
| Multimodal | 69.9 | — | — |
| Inst. Following | 69.5 | — | — |
Operational Comparison
Claude Opus 4.5
SWE-1.7
$5 / $25
N/A
46 t/s
N/A
1.01s
N/A
200K
256K
Quick Verdict
Pick SWE-1.7 if you want the stronger benchmark profile. Claude Opus 4.5 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
SWE-1.7 has the cleaner provisional overall profile here, landing at 75 versus 73. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
SWE-1.7's sharpest advantage is in agentic, where it averages 81.5 against 62.6. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 59.3% to 81.5%.
SWE-1.7 is the reasoning model in the pair, while Claude Opus 4.5 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. SWE-1.7 gives you the larger context window at 256K, compared with 200K for Claude Opus 4.5.
Benchmark Deep Dive
Frequently Asked Questions (2)
Which is better, Claude Opus 4.5 or SWE-1.7?
SWE-1.7 is ahead on BenchLM's provisional leaderboard, 75 to 73. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 59.3% and 81.5%.
Which is better for agentic tasks, Claude Opus 4.5 or SWE-1.7?
SWE-1.7 has the edge for agentic tasks in this comparison, averaging 81.5 versus 62.6. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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