OpenAI
GPT-5 Nano API prices by provider
openai/gpt-5-nano
2 inference providers serve this exact model through OpenRouter. Input and output rates are paired per endpoint; route tags may identify a region or sub-endpoint whose eligibility is not yet verified.
- Active endpoints
- 4 / 4
- Lowest at 1M in + 1M out
- $0.225
- OpenAI · standard tier
- Context up to
- 400K
- Latest price change
- None yet
- Rates unchanged since first record 2026-09-29
| Provider · route | Tier | Input / 1M | Output / 1M | Cache read | Cache write | Context | Tools | 1M + 1M | Status | Price since |
|---|---|---|---|---|---|---|---|---|---|---|
OpenAI openai/flex · unknown | Standard | $0.025 | $0.20 | $0.0025 | — | 400K | Yes | $0.225 | Active | Since |
Azure azure · unknown | Standard | $0.05 | $0.40 | $0.01 | — | 400K | Yes | $0.45 | Active | Since |
OpenAI openai · unknown | Standard | $0.05 | $0.40 | $0.005 | — | 400K | Yes | $0.45 | Active | Since |
Azure azure/swedencentral · unknown | Standard | $0.055 | $0.44 | $0.011 | — | 400K | Yes | $0.495 | Active | Since |
“—” means no rate is published for that endpoint; it is excluded from estimates, not counted as zero. “Since” is the first record with no rate change observed; “Changed” is the latest observed rate or billing change. Per-request fees: not published for any endpoint here. Status is the upstream operational flag, not a measured uptime.