--- description: GPT-6 Luna is OpenAI's most efficient GPT-6 model, built for focused, high-volume tasks. title: GPT-6 Luna image: https://developers.cloudflare.com/og-docs.png --- [Skip to content](#main-content) > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/llms.txt > Use this file to discover all available pages before exploring further. ![OpenAI logo](https://developers.cloudflare.com/_astro/openai.BBwNKzBb.svg) # GPT-6 Luna Text Generation • OpenAI Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/) `openai/gpt-6-luna` - Third-party GPT-6 Luna is OpenAI's most efficient GPT-6 model, built for focused, high-volume tasks. | Model Info | | | --- | --- | | Context Window [ ↗](https://developers.cloudflare.com/workers-ai/platform/glossary/) | 1,050,000 tokens | | Terms and License | [link ↗](https://openai.com/policies/) | | More information | [link ↗](https://developers.openai.com/api/docs/models/gpt-6-luna) | | Request formats | Responses, Chat Completions | | Pricing | | ## Usage ```ts const response = await env.AI.run( 'openai/gpt-6-luna', { input: 'A service has 99.9% monthly availability and just had 31 minutes of downtime. Has it exceeded the monthly error budget for a 30-day month? Show the calculation briefly.', max_output_tokens: 512, reasoning: { effort: 'high' }, }, ) console.log(response) ``` ```bash curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/v1/responses \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "openai/gpt-6-luna", "input": "A service has 99.9% monthly availability and just had 31 minutes of downtime. Has it exceeded the monthly error budget for a 30-day month? Show the calculation briefly.", "max_output_tokens": 512, "reasoning": { "effort": "high" } }' ``` ``` No. A 30-day month has 43,200 minutes, so a 99.9% availability target allows **43.2 minutes** of downtime. **31 minutes < 43.2 minutes** — the service is within its error budget, with **12.2 minutes** remaining. ``` ```json { "id": "resp_0834f111f7f68c6e006ab2cf91391887d1b9ed77f9003d8001", "object": "response", "created_at": 1790103441, "status": "completed", "access_programs": { "cyber": "daybreak_blue" }, "background": false, "billing": { "payer": "developer" }, "completed_at": 1790103442, "error": null, "frequency_penalty": 0, "incomplete_details": null, "instructions": null, "max_output_tokens": 512, "max_tool_calls": null, "model": "gpt-6-luna", "moderation": null, "output": [ { "id": "rs_0834f111f7f68c6e006ab2cf91a3dc87d194f310e59b05b545", "type": "reasoning", "content": [], "encrypted_content": "gAAAAABqss-TspJODH9IZcFL8SzWTp9z3qvEH482IoLj1OmrPlxluS5KGNZRrU1yGjrek9eQ7K6QzWND5RagCGsxWPN3ZK7lFfa8HWjztExHY-locYCrFDRWniTGdOmjF0dAUcm_5L5laGAhFa5qiRByPmSSapXvxyhbYx1Qs-_SjUxRF7rvxFIisGHm4XeHSuTMLUaVGk3okdDMWwxJDZrPjOk66JLwvZ_D8n345Iw6WG7L6iS30KsEhOuKVxkdkl0H_T_2fDaGxaJfOIr0WCSFjM62vvZNw6Gi9-zf8tzupmjORta_cLu9YDNSklYSNio-rUS-2RMlfJA1RvFQPKIx8347HtpYUYqHBNFRlNA-Az99fWBdGffyNtYL2vuItF4X0UJ1tDN_KtuFil7qLPJMGHTdXI7_-2YzNw9u-rmeeR9tnp3zbCertjlHMsTAcT0fbuLh_ob-GCDSg0pR8Ac5fsJv75nRqIMVixC_e7sL_5sGDAsJDi-24_nUAtU84zCPinglfdiYNvwBoEOgZQ-bYT8K3DZ-Z6dJaupCz_ncOtsFIvvEehM2JzcVdKkhUv6ilUst-J-RoMEzb3HzpKZE2Y6Ry3R-VDvLOda2HL-DrmbK4zW_o8X5-Yp5I-XXIomnt3yxMRYyH5WI66HkMQAFQtiP7ukmQEpI-_ItySu48cro2tpY3tBnRBJAvAU45yGDm9EhG6F_jThXyEav90yADc4GfJw82gZDzrnmQ0Oki8U0jEfPUipKztlsstiLw06Da5IF6cBxhOMiNq2TbB4j5o3bG48HSxAzwgu8xHHSR00_IWMEFO49l6lWpO9W0FWN9OdeaMKkRFQ8cGNIZCqDgYvkw3x0NlbOtjm_TqIQMRVM7vfsdujWSwb1iidy6BEYde7TVAmEg_D0jk7tq9JPIQIngvbxeWXpE2zmvEGrgDqD9y8d-dF2svsxMegzFpZjVowcWRPhJXcySYsMnPrIYqM8bCmXPhSXoBgmTqvWO8BCBJUPvRLPAkJSUU4JTI3GAsN4XAKVm-NaQghf4t5ofeZkIRx9sc1jkz1KfEZ_hH02_89s_A8u2GaiCREYGisKBd9ZuvtDu2WxzIsqud1YKqn9epw-ZC5zCkS0MfZW5rZGmBmu2K6Zia2swsBgs3mypZPh4ihYkkeuAxs_eX1nFtCW-tdYGFcCKVRBf3tvbA2XRgcfgNr9LH6kmbWSBM53kjxLI5L6hR-CDBJ9lWuWoal1R3GzWL9-uIbU4i4ailowQwcgQ2o8Lnnq_jZTs-yurDDyThIVKeo_ZkrmniqyReoVlwYZYRWKaKsSV6i95J-GosOjqM4BoVZGB0tvebNbEOz4tGzKPmoDFI6ckl4Jede1l3dYWAobbPgGab7pp4QgmerdWhiIyK2-kRrDsocrazxjIv0hEqOZha1jwN_cWqmfPTgfmv7jIHZ9Be0S8xrQdd11Qwwyik1OPyJlYte3Ru1IO6FDcCRNbAE3yFBE9pSU8kOKIg==", "summary": [] }, { "id": "msg_0834f111f7f68c6e006ab2cf925fd487d1b67ccd2ee1e2dfe5", "type": "message", "status": "completed", "content": [ { "type": "output_text", "annotations": [], "logprobs": [], "text": "No. A 30-day month has 43,200 minutes, so a 99.9% availability target allows **43.2 minutes** of downtime.\n\n**31 minutes < 43.2 minutes** — the service is within its error budget, with **12.2 minutes** remaining." } ], "phase": "final_answer", "role": "assistant" } ], "parallel_tool_calls": true, "presence_penalty": 0, "previous_response_id": null, "prompt_cache_key": null, "prompt_cache_retention": "24h", "reasoning": { "context": "all_turns", "effort": "high", "mode": "standard", "summary": null }, "safety_identifier": null, "service_tier": "default", "store": true, "temperature": 1, "text": { "format": { "type": "text" }, "verbosity": "medium" }, "tool_choice": "auto", "tool_usage": { "image_gen": { "input_tokens": 0, "input_tokens_details": { "image_tokens": 0, "text_tokens": 0 }, "output_tokens": 0, "output_tokens_details": { "image_tokens": 0, "text_tokens": 0 }, "total_tokens": 0 }, "web_search": { "num_requests": 0 } }, "tools": [], "top_logprobs": 0, "top_p": 0.98, "truncation": "disabled", "usage": { "input_tokens": 44, "input_tokens_details": { "cache_write_tokens": 0, "cached_tokens": 0 }, "output_tokens": 151, "output_tokens_details": { "reasoning_tokens": 84 }, "total_tokens": 195 }, "user": null, "metadata": {} } ``` ## Examples
**Migration Safeguards** — Generate a concise answer through Chat Completions ```ts const response = await env.AI.run( 'openai/gpt-6-luna', { messages: [ { role: 'user', content: 'List three practical safeguards for a production API migration.' }, ], max_completion_tokens: 256, }, ) console.log(response) ``` ```bash curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/v1/chat/completions \ --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \ --header "Content-Type: application/json" \ --data '{ "model": "openai/gpt-6-luna", "messages": [ { "role": "user", "content": "List three practical safeguards for a production API migration." } ], "max_completion_tokens": 256 }' ``` ``` 1. **Preserve compatibility:** Version the API or support old and new contracts during the transition; document breaking changes and give clients a migration window. 2. **Roll out gradually:** Test in staging, then use a canary or percentage-based rollout with monitoring for errors, latency, and client failures. 3. **Plan validation and rollback:** Verify key workflows and data before and after cutover, keep backups or a reversible migration path, and define clear rollback triggers. ``` ```json { "id": "chatcmpl-EQzy7Or5tZ9ZdoXfjhVAYfwDEj28S", "object": "chat.completion", "created": 1790103443, "model": "gpt-6-luna", "choices": [ { "index": 0, "message": { "role": "assistant", "content": "1. **Preserve compatibility:** Version the API or support old and new contracts during the transition; document breaking changes and give clients a migration window.\n2. **Roll out gradually:** Test in staging, then use a canary or percentage-based rollout with monitoring for errors, latency, and client failures.\n3. **Plan validation and rollback:** Verify key workflows and data before and after cutover, keep backups or a reversible migration path, and define clear rollback triggers.", "refusal": null, "annotations": [] }, "finish_reason": "stop" } ], "usage": { "prompt_tokens": 16, "completion_tokens": 128, "total_tokens": 144, "prompt_tokens_details": { "cached_tokens": 0, "cache_write_tokens": 0, "audio_tokens": 0 }, "completion_tokens_details": { "reasoning_tokens": 25, "audio_tokens": 0, "accepted_prediction_tokens": 0, "rejected_prediction_tokens": 0 } }, "service_tier": "default", "system_fingerprint": null } ```
## Parameters Schema variant ResponsesChat Completions ▶input `one of`required instructions `string` temperature `number`minimum: 0maximum: 2 max\_output\_tokens `number`exclusiveMinimum: 0 top\_p `number`minimum: 0maximum: 1 stream `boolean` ▶tools\[] `array` tool\_choice ▶text{} `object` ▶reasoning{} `object` ▶messages\[] `array`required temperature `number`minimum: 0maximum: 2 max\_tokens `number`exclusiveMinimum: 0 max\_completion\_tokens `number`exclusiveMinimum: 0 top\_p `number`minimum: 0maximum: 1 frequency\_penalty `number`minimum: -2maximum: 2 presence\_penalty `number`minimum: -2maximum: 2 stream `boolean` ▶stream\_options{} `object` ▶tools\[] `array` tool\_choice response\_format ▶modalities\[] `array` ▶audio{} `object` reasoning\_effort `string`Optional reasoning control; availability and accepted values are model-dependent. id `string` object `string`const: response created\_at `number` model `string` ▶output\[] `array` output\_text `string` status `string`enum: in\_progress, completed, failed, incomplete ▶usage{} `object` id `string` object `string` created `number` model `string` ▶choices\[] `array` ▶usage{} `object` ## API Schemas (Raw) Input [Open](https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/schema-input.json) [Download](https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/schema-input.json) Output [Open](https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/schema-output.json) [Download](https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/schema-output.json) Was this helpful? YesNo ## On this page [![](https://developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://developers.cloudflare.com/) ```json {"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/#page","headline":"GPT-6 Luna","description":"GPT-6 Luna is OpenAI's most efficient GPT-6 model, built for focused, high-volume tasks.","url":"https://developers.cloudflare.com/ai/models/openai/gpt-6-luna/","inLanguage":"en","image":"https://developers.cloudflare.com/og-docs.png","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. Build, secure, and scale without managing infrastructure","url":"https://www.cloudflare.com/","sameAs":["https://github.com/cloudflare","https://www.linkedin.com/company/cloudflare","https://x.com/cloudflare"],"logo":{"@type":"ImageObject","url":"https://developers.cloudflare.com/logo.svg"},"address":{"@type":"PostalAddress","streetAddress":"101 Townsend St","addressLocality":"San Francisco","addressRegion":"CA","postalCode":"94107","addressCountry":"US"},"contactPoint":[{"@type":"ContactPoint","contactType":"Customer Support","url":"https://support.cloudflare.com/","availableLanguage":["English"]},{"@type":"ContactPoint","contactType":"Sales","url":"https://www.cloudflare.com/contact/","availableLanguage":["English"]}]},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}} ```