Higher-accuracy GPT-5 tier for tough analysis, coding reviews, and planning
GPT-5 Pro by openai is offered by 16 providers on this page. Its official list price is $15.00 per 1M input tokens and $120 per 1M output tokens.
The context window is 400,000 tokens at the reference host, but hosts report different limits, from 128,000 to 400,000, so the usable window depends on the provider you pick. It supports reasoning, tool use, and structured output. Accepted input modalities are Text, Image, and PDF. Providers report the capability flags inconsistently, so verify a specific feature against the host you plan to use. Its training knowledge cuts off at 2024-09-30.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Jiekou.AI | Gateway | $13.50 | $108 | — | — | 400,000 | 272,000 | |
| Poe | Gateway | $14.00 | $110 | — | — | 400,000 | 128,000 | |
| NanoGPT | Gateway | $15.00 | $120 | $1.50 | — | 400,000 | 128,000 | |
| Kilo Gateway | Gateway | $15.00 | $120 | — | — | 400,000 | 128,000 | |
| 302.AI | Gateway | $15.00 | $120 | — | — | 400,000 | 272,000 | |
| OpenRouter | Gateway | $15.00 | $120 | — | — | 400,000 | 128,000 | |
| Azure | Cloud | $15.00 | $120 | — | — | 400,000 | 128,000 | |
| Azure Cognitive Services | Cloud | $15.00 | $120 | — | — | 400,000 | 128,000 | |
| Impossibl | Gateway | $15.00 | $120 | — | — | 400,000 | 272,000 | |
| Vercel AI Gateway | Cloud | $15.00 | $120 | — | — | 400,000 | 272,000 | |
| OpenAIOfficial | First-party | $15.00 | $120 | — | — | 400,000 | 272,000 | |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
2 / 16 providers expose no reasoning control (reasoning_options: []).