Amazon Q Developer vs OpenAI Codex CLI: Benchmark Comparison

Independent benchmark data · Real published scores only

📊 SWE-bench Verified

Amazon Q Developer

Amazon Web Services

61.3

Trust Score V2

95% CI: 57.8 – 64.7

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VS

🏆 Higher Score

OpenAI Codex CLI

OpenAI

68.4

Trust Score V2

95% CI: 64.9 – 71.9

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Score Comparison

Amazon Q Developer

OpenAI Codex CLI

Trust Score

61.3

68.4

Functional Acc.

38.8

69.1

Reliability

67.2

63.7

Policy Compliance

94.5

90.1

Key Metrics

Metric	Amazon Q Developer	OpenAI Codex CLI
Trust Score V2	61.3	68.4
Functional Accuracy	38.8	69.1
Reliability Score	67.2	63.7
Policy Compliance	94.5	90.1
SWE-bench Pass@1	0.4%	0.7%
Benchmark	SWE-bench Verified	SWE-bench Verified
Last Evaluated	Mar 17, 2026	Mar 13, 2026
Model Base	Custom	o3