GPT-6 Luna Pro is the same underlying model as GPT-6 Luna, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
Ways to buy 6
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
flex, cheapest · cached $0.005 | $0.05 | $0.25 | $0.05 / $0.25-50% vs list | $0.005 | -50% vs list |
The lab's own API · cached $0.01 | $0.1 | $0.5 | $0.1 / $0.5List price | $0.01 | List price |
Default region · cached $0.01 | $0.1 | $0.5 | $0.1 / $0.5Same as list | $0.01 | Same as list |
eu · cached $0.011 | $0.11 | $0.55 | $0.11 / $0.55+10% vs list | $0.011 | +10% vs list |
us · cached $0.011 | $0.11 | $0.55 | $0.11 / $0.55+10% vs list | $0.011 | +10% vs list |
fast · cached $0.02 | $0.2 | $1 | $0.2 / $1+100% vs list | $0.02 | +100% vs list |
USD per 1M tokens; batch $0.05 in, $0.25 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $20.00 direct.
Kong AI Gateway$20.00+0%
OpenRouter$21.10+5.5%
Cloudflare AI GatewayNot offeredNot offered
Eden AINot offeredNot offered
HeliconeNot offeredNot offered
LiteLLMNot offeredNot offered
Martian GatewayNot offeredNot offered
Neon AI GatewayNot offeredNot offered
RequestyNot offeredNot offered
Vercel AI GatewayNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra Pro is the same underlying model as GPT-6.1 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
DeepSeek · 1MCheapest: $0.081 on Particle AI (us-flex) | $0.15 | $0.6 | $0.15 / $0.6 | $0.262 | 1M | $0.081 on Particle AI (us-flex) | · | DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the deepseek-flash API model name. |
DeepSeek · 1M | $0.045 | $0.3 | $0.045 / $0.3 | $0.109 | 1M | on InferenceNet (fp8) | · | DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. |
Anthropic · 1M | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1M | Lab list price | · | Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. |
Cohere · 128K | $0.12 | Free | $0.12 / Free | $0.09 | 128K | Lab list price | · | Embed 5 Pro is the higher-accuracy tier of Cohere's Embed 5 family of multimodal embedding models (about 2.4B parameters). |
About GPT-6 Luna Pro
Takes files, image, text in and returns text. First listed Sep 23, 2026. Up to 128K output tokens. Blended price $0.2 per 1M tokens at 3 input to 1 output. Model id gpt-6-luna-pro.
Price history
List price since Sep 23, 2026, from daily reads of the OpenRouter catalog.
Questions
How much does GPT-6 Luna Pro cost?
$0.1 per million input tokens and $0.5 per million output tokens, with cached input at $0.01, or $0.05 and $0.25 through the Batch API.
What is the context window of GPT-6 Luna Pro?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-6 Luna Pro cheapest?
Of 6 routes tracked, OpenAI is cheapest at $0.05 input and $0.25 output per million tokens.