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GPT-5.3 Codex

OpenAI Proprietary
79.6
Vibe Coding Index · #13 of 21
✓ Verified data — every figure is cited. See sources.
Quality #13/21
79.6
VCI
Price #9/12
$4.81
$/M blended
Speed #8/12
87
tok/s
Latency #10/12
92.81s
to first token

Suite radar

SWE-bench Terminal-Bench LiveCodeBench

Suite scores

SWE-bench Verified
Real GitHub issues fixed end-to-end
75
↗
Terminal-Bench
Agentic tasks in a real shell
78
↗
LiveCodeBench
Fresh competitive-programming problems
87
↗
Figure sources
pricing ↗ context ↗ speed ↗ latency ↗

Where GPT-5.3 Codex sits

Its dot is ringed on the cost×quality and speed×quality frontiers.

↖ Best value Premium ↗ ↙ Budget Poor value ↘ 45 50 55 60 65 70 75 80 85 90 95 $0.32 $1 $3.16 $10 $31.62 BLENDED COST — $ / 1M TOKENS (LOG) VIBE CODING INDEX Claude Fable 5 Grok 4.5 MiniMax M3 GPT-5.3 Codex
Efficient frontier Alibaba Anthropic DeepSeek Google MiniMax Moonshot AI OpenAI xAI Hover, tap or focus a point · dashed lines = medians 10 model(s) hidden — data not yet verified
↖ Smart but slow Fast & smart ↗ ↙ Laggards Fast but shallow ↘ 45 50 55 60 65 70 75 80 85 90 95 0 48 96 144 192 240 OUTPUT SPEED — TOKENS / SECOND VIBE CODING INDEX Claude Fable 5 Grok 4.5 MiniMax M3 Qwen3.7 Max GPT-5.3 Codex
Efficient frontier Alibaba Anthropic DeepSeek Google MiniMax Moonshot AI OpenAI xAI Hover, tap or focus a point · dashed lines = medians 10 model(s) hidden — data not yet verified
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