API Status

GPT-5.1-codex-max Benchmarks

Provider: openai

Explore real-world latency and throughput results for GPT-5.1-codex-max. These measurements come from automated benchmarking runs against the provider APIs using the same harness that powers the public cloud dashboard.

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Benchmark Overview

Avg Tokens / Second

88.20

Avg Time to First Token (ms)

1160.00

Runs Analysed

236

Last Updated

Mar 29, 2026, 09:03 PM

Key Insights

  • GPT-5.1-codex-max streams at 88.20 tokens/second on average across the last 236 benchmark runs.

  • Performance fluctuated by 103.00 tokens/second (116.8% coefficient of variation), indicating variable behavior across benchmark runs.

  • Average time to first token is 1160.00 ms (moderate latency), consider alternatives for latency-sensitive workloads.

  • Latest measurements completed on Mar 29, 2026, 09:03 PM based on 236 total samples.

Performance Distribution

Distribution of throughput measurements showing performance consistency across benchmark runs.

Performance Over Time

Historical performance trends showing how throughput has changed over the benchmarking period.

GPT-5.1-codex-max

Benchmark Samples

ProviderModelAvg Toks/SecMinMaxAvg TTF (ms)
openaiGPT-5.1-codex-max88.2014.00117.001160.00

Frequently Asked Questions

The latest rolling average throughput is 88.20 tokens per second with an average time to first token of 1160.00 ms across 236 recent runs.

Benchmarks refresh automatically whenever the monitoring cron runs. The most recent run completed on Mar 29, 2026, 09:03 PM.

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