GPT-5 Pro
As of Oct 4, 2026, the cheapest GPT-5 Pro API price is $13.5 per 1M input tokens (Jiekou.AI) and $108 per 1M output tokens (Jiekou.AI). GPT-5 Pro is offered by 16 providers in the gpt-pro family, reasoning enabled. OpenAI's own rate is $120 per 1M output tokens.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Provider | 1M input | 1M output | 1M cache read | 1M cache write | Context |
|---|---|---|---|---|---|
| Jiekou.AI | Cheapest$13.5 | Cheapest$108 | — | — | 400k |
| Poe | $14 | $110 | — | — | 400k |
| 302.AI | $15 | $120 | — | — | 400k |
| Azure | $15 | $120 | — | — | 400k |
| Azure Cognitive Services | $15 | $120 | — | — | 400k |
| Eden AI | $15 | $120 | — | — | 400k |
| Helicone | $15 | $120 | — | — | 128k |
| Impossibl | $15 | $120 | — | — | 400k |
| Kilo Gateway | $15 | $120 | — | — | 400k |
| DevPass (LLM Gateway) | $15 | $120 | — | — | 400k |
| LLM Gateway | $15 | $120 | — | — | 400k |
| NanoGPT | $15 | $120 | $1.5 | — | 400k |
| OpenAI | $15 | $120 | — | — | 400k |
| OpenRouter | $15 | $120 | — | — | 400k |
| OrcaRouter | $15 | $120 | — | — | 400k |
| Vercel AI Gateway | $15 | $120 | — | — | 400k |
GPT-5 Pro pricing FAQ
What is the cheapest GPT-5 Pro API?
As of Oct 4, 2026, Jiekou.AI has the lowest GPT-5 Pro output price at $108 per 1M tokens, and Jiekou.AI has the lowest input price at $13.5 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How much does GPT-5 Pro cost on OpenAI?
OpenAI charges $15 per 1M input tokens and $120 per 1M output tokens for GPT-5 Pro.
How many providers offer GPT-5 Pro?
16 providers list GPT-5 Pro on Sovyron; 16 of them sell it at a metered per-token price.
Is GPT-5 Pro free?
No provider in the Sovyron catalog lists a free tier for GPT-5 Pro.
What is the context window of GPT-5 Pro?
GPT-5 Pro supports a 400k-token context window and up to 272k output tokens.