OpenAI model pricing
5 models with published list prices, from $0.500 to $50 per million output tokens, up to 1.1M of context. Verified Oct 15, 2026.
| Model | Input / 1M | Output / 1M | Context | Max output |
|---|---|---|---|---|
| GPT-5.3-Codex | $1.75 | $14 | 400K | 128K |
| GPT-5.6 Sol | $4 | $20 | 1.1M | 128K |
| GPT-6 Astra | $10 | $50 | 1.1M | 128K |
| GPT-6 Luna | $0.100 | $0.500 | 1.1M | 128K |
| GPT-6.1 Sol | $2 | $10 | 1.1M | 128K |
USD per million tokens, from OpenAI's published pricing. Each model page carries the source link, worked cost examples and any tier or promotional conditions.
Where OpenAI sits on price
Cheapest output in this range: GPT-6 Luna at $0.500 per million output tokens. Most expensive: GPT-6 Astra at $50. That is a 100.0× spread inside one vendor — worth knowing before you assume a single provider is uniformly cheap or expensive.