GPT-5.5 Pro vs SWE-1.7
Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
GPT-5.5 Pro leads for most workloads.
Based on BenchLM composite scores, July 2026.
GPT-5.5 Pro
77
SWE-1.7
75
Pick GPT-5.5 Pro if you want the stronger benchmark profile. SWE-1.7 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Category Breakdown
| Benchmark | GPT-5.5 Pro | Δ | SWE-1.7 |
|---|---|---|---|
| Agentic | 90.1 | ← 8.6 | 81.5 |
| Knowledge | 57.2 | — | — |
| Math | 52.4 | — | — |
Operational Comparison
GPT-5.5 Pro
SWE-1.7
$30 / $180
N/A
N/A
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1M
256K
Quick Verdict
Pick GPT-5.5 Pro if you want the stronger benchmark profile. SWE-1.7 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
GPT-5.5 Pro has the cleaner provisional overall profile here, landing at 77 versus 75. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
GPT-5.5 Pro's sharpest advantage is in agentic, where it averages 90.1 against 81.5.
GPT-5.5 Pro gives you the larger context window at 1M, compared with 256K for SWE-1.7.
Benchmark Deep Dive
Frequently Asked Questions (2)
Which is better, GPT-5.5 Pro or SWE-1.7?
GPT-5.5 Pro is ahead on BenchLM's provisional leaderboard, 77 to 75.
Which is better for agentic tasks, GPT-5.5 Pro or SWE-1.7?
GPT-5.5 Pro has the edge for agentic tasks in this comparison, averaging 90.1 versus 81.5. SWE-1.7 stays close enough that the answer can still flip depending on your workload.
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