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Models/gpt-5-5

GPT 5.5

11th on DeepSWE v1.1 Best (xhigh) at 67.0%.

OpenAI · Proprietary · Fetched 2026-10-10

DeepSWE v1.1
67.0%
#11 / 28 · 60.6–73.5

Benchmark scores

Boards older than 90 days are not counted as recommendations
BenchmarkSettingScoreRankCostAs of
DeepSWE v1.1xhigh · mini-swe-agent67.060.6–73.5#11$7.232026-09-22
SWE-bench Verified—This board has stopped updating——2026-02-26
Aider Polyglot—This board has stopped updating——2025-11-20

Use it or not

Why
  • Mid-front on DeepSWE with a checkable long-horizon score.
When not
  • A different row from the GPT 5.6 / GPT 6 families.

Appears in these scenarios

Collected from scenario boards
Build a Web frontend#11DeepSWE 67.0%Build an Android app#11DeepSWE 67.0%Write CLI, scripts, and DevOps#11DeepSWE 67.0%

Peers

ModelDeepSWEPrice $/M
GPT 5.5Current67.0%—Grok 4.667.5%—GPT 5.6 Luna67.2%—Gemini 3.7 Flash65.5%—GLM 5.3 Flash63.4%—