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GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Input
$0.25
per 1M tokens
Output
$2.00
per 1M tokens
Blended
$0.69
per 1M tokens
Cheaper than 47% of models. Median price is $0.56/1M tokens.
Daily
$0.69
Monthly
$20.63
199
tokens/sec
Faster than 90% of models
3.30
seconds
Faster than 19% of models
3.30
seconds
Faster than 48% of models
Market Median
86 tok/s
131% faster
Median TTFT
1.07s
208% slower
Throughput/Dollar
289
tok/s per $/1M
Speed Comparison
Context Window
400K
tokens
Larger than 79% of models
Max Output
128K
tokens
32% of context
Quality Index
38.6
85th of 507
Top 17%
Coding Index
36.4
72nd of 417
Top 17%
Math Index
91.7
18th of 269
Top 7%
Price/1M
$0.69
336th cheapest
23% above median
Top 53%
Speed
199 tok/s
Top 10%
TTFT
3.30s
Context Window
400K
68th largest
Top 21%