Best OpenAI models
All OpenAI models available on anyAInow, ranked by reasoning score (GPQA Diamond) and shown with pricing, so you can pick the right one. Pay-as-you-go from a single balance.
| # | Model | GPQA Diamond | |
|---|---|---|---|
| 1 | GPT-5.5 OpenAIFlagship·from $50 / 1M | 93.6% | Try → |
| 2 | GPT-5.4 OpenAIBalanced·from $30 / 1M | 92.8% | Try → |
| 3 | GPT-5.4 mini OpenAIFast·from $10 / 1M | 88% | Try → |
| 4 | GPT-5 nano OpenAIFree·Free | 71.2% | Try → |
Benchmarks via llm-stats.com, as of 28 Jun 2026. Figures are publisher-reported where not independently verified. Prices shown are the anyAInow pay-as-you-go floor (per 1M tokens); free-tier models deduct nothing.