Choose a model to open its comparison page.
GPT-5.4 benchmark, API pricing, and provider data cover 849 API providers, with prices starting at $0.0003/M. GPT-5.4 free API options are available from 15 providers. The page also shows measured API speed and first-token latency.
OpenAI GPT-5.4 extends the GPT-5 family with stronger instruction following, deeper tool use, and improved performance on coding, math, and long-document analysis.
Observed-capability estimates with uncertainty reported separately from independent benchmark families.
Input and output token limits for this model, plus how it ranks on long-context understanding.
1 metric
2 metrics
2 metrics
18 metrics · Rated
8 metrics · Estimated
4 metrics · Estimated
12 metrics · Provisional
3 metrics · Provisional
0 metrics · No data
12 metrics · Rated
1 metric · Provisional
Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.
| Provider endpoint | Input | Output | 1d uptime | 30m latency | 30m throughput | Context / output |
|---|---|---|---|---|---|---|
Azure azure | $2.50/M | $15/M | 99.7% | — | — | 1.1M tokens / 128K tokens |
OpenAI openai/flex | $1.25/M | $7.50/M | 99.1% | — | — | 1.1M tokens / 128K tokens |
OpenAI openai | $2.50/M | $15/M | 99.1% | — | — | 1.1M tokens / 128K tokens |
OpenAI openai/priority | $5/M | $30/M | 99.1% | — | — | 1.1M tokens / 128K tokens |
Azure azure/eu | $2.75/M | $16.50/M | — | — | — | 1.1M tokens / 128K tokens |
Compare GPT-5.4 API pricing across 834 providers. Prices range from $0.0003/M to $749250.00/M. FineOneAPI offers the lowest rate at $0.0003/M. 15 providers offer free API credits or a free tier.
