OpenAI Daybreak Blue

OpenAI released Daybreak Blue, an alias for frontier general-purpose models with safeguards for defensive cybersecurity work, featuring a 1,050,000-token context window, 128,000 max output tokens, and a Feb 16, 2026 knowledge cutoff. The model supports text and image input, text output, and is available via multiple endpoints including Chat Completions, Responses, and Realtime, with rate limits varying by tier from 500 RPM at Tier 1 to 15,000 RPM at Tier 5.

Daybreak Blue Default An alias for frontier general-purpose models with safeguards for defensive cybersecurity work. An alias for frontier general-purpose models with safeguards for defensive cybersecurity work. Reasoning Highest Speed Fast Input Text, image Output Text 1,050,000 context window 128,000 max output tokens Feb 16, 2026 knowledge cutoff Reasoning token support Modalities Text Input and output Image Input only Audio Not supported Video Not supported Endpoints Chat Completions v1/chat/completions Responses v1/responses Realtime v1/realtime Realtime translation v1/realtime/translations Realtime transcription v1/realtime/transcription sessions Assistants v1/assistants Batch v1/batch Fine-tuning v1/fine-tuning Embeddings v1/embeddings Image generation v1/images/generations Videos v1/videos Image edit v1/images/edits Speech generation v1/audio/speech Transcription v1/audio/transcriptions Translation v1/audio/translations Moderation v1/moderations Completions legacy v1/completions Features Streaming Supported Function calling Supported Structured outputs Supported Fine-tuning Not supported Tools Tools supported by this model when using the Responses API. Web search Supported File search Supported Image generation Supported Code interpreter Supported Hosted shell Supported Apply patch Supported Skills Supported Computer use Supported MCP Supported Tool search Supported Snapshots Snapshots let you lock in a specific version of the model so that performance and behavior remain consistent. Below is a list of all available snapshots and aliases for Daybreak Blue. daybreak-blue-latest gpt-5.6-sol gpt-5.6-sol Rate limits Rate limits ensure fair and reliable access to the API by placing specific caps on requests, tokens, audio duration, or other usage within a given time period. Your usage tier determines how high these limits are set and automatically increases as you send more requests and spend more on the API. | Tier | RPM | TPM | Batch queue limit | |---|---|---|---| | Free | Not supported | || | Tier 1 | 500 | 500,000 | 1,500,000 | | Tier 2 | 5,000 | 1,000,000 | 3,000,000 | | Tier 3 | 5,000 | 2,000,000 | 100,000,000 | | Tier 4 | 10,000 | 4,000,000 | 200,000,000 | | Tier 5 | 15,000 | 40,000,000 | 15,000,000,000 |