llm-benchmarks
githubdrose.io

GPT-5.1-codex Benchmarks


Measured on openai

245 runs
openai site
Avg Tokens / Second
68.20
Avg Time to First Token (ms)
1030.00
Runs Analysed
245
Last Updated
Jul 21, 2026, 03:14 AM

Throughput distribution

  • GPT-5.1-codex openai68 tok/s
0255075100

Visible-token throughput, same basis as the table · curves normalised per model

Throughput over time

GPT-5.1-codexopenai18tok/s

Generated throughput, including reasoning tokens — so a thinking model's line does not collapse; the table ranks on visible tokens · one cell per model, showing its best-covered provider · shared vertical scale, 0 to 85 tok/s (99th percentile) · dashed rule is the model's own mean

Every provider serving this model

1 measured
ProviderModelAvg Toks/SecMinMaxAvg TTF (ms)
openaiGPT-5.1-codex68.2020.3083.401030.00

Frequently Asked Questions

How fast is GPT-5.1-codex?
The latest rolling average throughput is 68.20 tokens per second with an average time to first token of 1030.00 ms across 245 recent runs.
How often are these benchmarks updated?
Benchmarks refresh automatically whenever the monitoring cron runs. The most recent run completed on Jul 21, 2026, 03:14 AM.

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