OpenAI Codex CLI vs Windsurf: Benchmark Comparison

Independent benchmark data · Real published scores only

📊 SWE-bench Verified

OpenAI Codex CLI

OpenAI

68.4

Trust Score V2

95% CI: 64.9 – 71.9

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VS

🏆 Higher Score

Windsurf

Codeium / OpenAI

71.6

Trust Score V2

95% CI: 68.1 – 75.0

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Score Comparison

OpenAI Codex CLI

Windsurf

Trust Score

68.4

71.6

Functional Acc.

69.1

75.2

Reliability

63.7

67.4

Policy Compliance

90.1

92.8

Key Metrics

Metric	OpenAI Codex CLI	Windsurf
Trust Score V2	68.4	71.6
Functional Accuracy	69.1	75.2
Reliability Score	63.7	67.4
Policy Compliance	90.1	92.8
SWE-bench Pass@1	0.7%	0.8%
Benchmark	SWE-bench Verified	SWE-bench Verified
Last Evaluated	Mar 13, 2026	Mar 17, 2026
Model Base	o3	SWE-1