Benchmark Overview
15.00
2420.00
160
Jun 10, 2026, 12:09 PM
Key Insights
GPT-5.3-codex streams at 15.00 tokens/second on average across the last 160 benchmark runs.
Performance fluctuated by 36.74 tokens/second (244.9% coefficient of variation), indicating variable behavior across benchmark runs.
Average time to first token is 2420.00 ms (high latency), consider alternatives for latency-sensitive workloads.
Latest measurements completed on Jun 10, 2026, 12:09 PM based on 160 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-5.3-codex
Benchmark Samples
| Provider | Model | Avg Toks/Sec | Min | Max | Avg TTF (ms) |
|---|---|---|---|---|---|
| openai | GPT-5.3-codex | 15.00 | 3.46 | 40.20 | 2420.00 |
Frequently Asked Questions
The latest rolling average throughput is 15.00 tokens per second with an average time to first token of 2420.00 ms across 160 recent runs.
Benchmarks refresh automatically whenever the monitoring cron runs. The most recent run completed on Jun 10, 2026, 12:09 PM.