Model pricing
OpenAI: GPT-5.1-Codex API Pricing
Compare 12 providers offering OpenAI: GPT-5.1-Codex. Official rate is $1.25, the cheapest quote is $0.500.
- Providers
- 12
- Official
- $1.25
- Cheapest
- $0.500
- Context
- 400K
Provider pricing
Cheapest and most expensive quotes differ by 2.5×.
Estimate my cost
Period
based on 30 days
| Provider | Input | Output | Cached input | Price/req | Context | vs official | Your cost | |
|---|---|---|---|---|---|---|---|---|
1.8M | $0.500 | $4.00 | — | — | — | 0.40× | $39cheapest | Use |
api.apiyi.comReseller | — | — | — | $0.020 | — | — | $60+$21 | Use |
265K | $1.00 | $8.00 | — | — | — | 0.80× | $78+$39 | Use |
17.3M | $1.25 | $10.00 | $0.125 | — | 400K | 1.00× | $98+$59 | Use |
AzureInference platform | $1.25 | $10.00 | $0.130 | — | 400K | 1.00× | $98+$59 | |
OpenAIModel owner | $1.25 | $10.00 | $0.125 | — | 400K | 1.00× | $98+$59 | |
218K | $1.25 | $10.00 | — | — | 400K | 1.00× | $98+$59 | Use |
aigcbest.topReseller | $1.25 | $10.00 | — | — | — | 1.00× | $98+$59 | Use |
api.burncloud.comReseller | $1.25 | $10.00 | — | — | — | 1.00× | $98+$59 | Use |
yunwu.aiReseller | $1.25 | $10.00 | — | — | — | 1.00× | $98+$59 | Use |
109K | $1.25 | $10.00 | — | — | — | 1.00× | $98+$59 | Use |
| $1.25 | $10.00 | — | — | — | 1.00× | $98+$59 | Use |
Prices captured Jul 26, 2026
Prices change frequently and promotional rates expire — always confirm on the provider's own pricing page before committing. Rates far below official pricing often indicate shared or resold accounts.