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OpenAI GPT-5.6 Luna Pro

GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://openrouter.ai/openai/gpt-5.6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...

OpenAI GPT-5.6 Luna Pro costs $0.20 per 1M input tokens and $1.20 per 1M output tokens at the standard tier, the lowest default-region price among the 2 providers SF·SIX tracks, from OpenAI. Cached input reads cost $0.02 per 1M tokens. Updated ; prices checked .

Checked · Source: OpenRouter · Methodology

Developer
OpenAI
Input modalities
file, image, text
Output modalities
text
Context tokens
1,050,000
Latest price observation
2026-10-17
Lowest paired standard token quote
$0.20 input / $1.20 output per 1M tokens

Dated price and provider records

Dated price and provider records
Provider and channelInputOutput or native rateUnit and statusSource and observation
AzureOpenRouter$0.20$1.201M tokenspriced · USDOpenRouter2026-10-17
OpenAIOpenRouter$0.20$1.201M tokenspriced · USDOpenRouter2026-10-17
AzureOpenRouter · EU region$0.22$1.321M tokenspriced · USDOpenRouter2026-10-17
OpenAIOpenRouter · Fast tier$0.40$2.401M tokenspriced · USDOpenRouter2026-10-17
OpenAIOpenRouter · Flex tier$0.10$0.601M tokenspriced · USDOpenRouter2026-10-17

Batch and free variants

These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.

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