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OpenAI AI model pricing
Compare official first-party OpenAI API prices with current rates across tracked inference venues.
4 models with current data
Which AI models have the lowest prices on OpenAI?
GPT-5.6 Luna has the lowest observed input price on this page at $0.20 per 1M tokens. GPT-5.6 Luna has the lowest observed output price at $1.20 per 1M tokens. Prices reflect the latest successful collection.
| Model | Input / 1M | Output / 1M | Context | Venues |
|---|---|---|---|---|
 GPT-5.6 LunaOpenAI | $0.20 | $1.20 | 1.1M | Surplus IntelligenceOpenRouterVercel AI GatewayOpenAIOpenCode Zen |
| GPT-5 MiniOpenAI | $0.25 | $2.00 | 400K | Surplus IntelligenceOpenRouterVercel AI GatewayOpenAI |
| GPT-5.2OpenAI | $1.75 | $14.00 | 400K | Surplus IntelligenceOpenRouterVercel AI GatewayOpenAIOpenCode Zen |
| GPT-5.6 SolOpenAI | $4.00 | $20.00 | 1.1M | Surplus IntelligenceOpenRouterVercel AI GatewayOpenCode ZenOpenAI |