Compare model prices
Input, output, cached and batch prices, every route and a month of tokens, side by side.
GPT-5.2-CodexGPT-6 LunaA month of tokens
100M input and 20M output tokens, list price. Use your own numbers.
Side by side
| GPT-5.2-Codex | GPT-6 Luna | |
|---|---|---|
| Input per 1M | $1.75 | $0.1 |
| Output per 1M | $14 | $0.5 |
| Cached input | $0.175 | $0.01 |
| Batch in / out | n/a | $0.05 / $0.25 |
| Blended (3:1) | $4.81 | $0.2 |
| Context | 400K | 1.05M |
| Routes | 2 | 7 |
| Released | Jan 14, 2026 | Sep 22, 2026 |
| Leadersboard score | n/a | n/a |
On the price map
Size: context window, 8K to 2MEqual blended cost (3:1) 243 models, lower left is cheaper
Every route
GPT-5.2-Codex
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
| OpenAI API The lab's own API · cached $0.175 | $1.75 | $14 | $1.75 / $14List price | $0.175 | List price |
 Azure AI FoundryDefault region · cached $0.175 | $1.75 | $14 | $1.75 / $14Same as list | $0.175 | Same as list |
GPT-6 Luna
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
| OpenAI flex, cheapest · cached $0.005 | $0.05 | $0.25 | $0.05 / $0.25-50% vs list | $0.005 | -50% vs list |
| OpenAI API The lab's own API · cached $0.01 | $0.1 | $0.5 | $0.1 / $0.5List price | $0.01 | List price |
| Azure AI Foundry Default region · cached $0.01 | $0.1 | $0.5 | $0.1 / $0.5Same as list | $0.01 | Same as list |
 AWS Bedrockus-east-1 · cached $0.011 | $0.11 | $0.55 | $0.11 / $0.55+10% vs list | $0.011 | +10% vs list |
| Azure AI Foundry eu · cached $0.011 | $0.11 | $0.55 | $0.11 / $0.55+10% vs list | $0.011 | +10% vs list |
| Azure AI Foundry us · cached $0.011 | $0.11 | $0.55 | $0.11 / $0.55+10% vs list | $0.011 | +10% vs list |
| OpenAI fast · cached $0.02 | $0.2 | $1 | $0.2 / $1+100% vs list | $0.02 | +100% vs list |
List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.