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[ARTICLE · art-90989] src=developers.openai.com ↗ pub= topic=artificial-intelligence verified=true sentiment=· neutral

OpenAI Daybreak Red

OpenAI has released Daybreak Red, an alias for its most advanced purpose-trained cybersecurity models, designed for authorized vulnerability research, exploit validation, and security testing. The model, which requires separate approval through the Daybreak program, features a 400,000-token context window, 128,000 max output tokens, and a knowledge cutoff of Feb 16, 2026, with rate limits ranging from 500 to 15,000 requests per minute depending on tier.

read2 min views1 publishedAug 10, 2026
OpenAI Daybreak Red
Image: Developers (auto-discovered)

Daybreak Red

Default

An alias for advanced cybersecurity models for authorized vulnerability research and security testing.

An alias for advanced cybersecurity models for authorized vulnerability research and security testing.

Reasoning

Highest

Speed

Fast

Input

Text, image

Output

Text

An alias for our most advanced purpose-trained cybersecurity models, for approved defenders conducting advanced, authorized vulnerability research, exploit validation, and security testing.

This model requires separate approval and provisioning, you can apply to join the Daybreak program here. More details on pricing here.

400,000 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 Red.

daybreak-red-latest

gpt-5.6-cyber

gpt-5.6-cyber

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
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