What is the context window of Agentic Chat (GPT-5.2) by GitLab Duo?

Agentic Chat (GPT-5.2) by GitLab Duo has a context window of 400K tokens. It supports up to 272K input tokens and can generate up to 128K output tokens.

What are the capabilities of Agentic Chat (GPT-5.2) by GitLab Duo?

Agentic Chat (GPT-5.2) by GitLab Duo supports advanced reasoning, tool calling/function calling, structured output, file attachments. It has closed weights.

What input and output types does Agentic Chat (GPT-5.2) support?

Agentic Chat (GPT-5.2) by GitLab Duo accepts text, image as input and can generate text as output.

Does Agentic Chat (GPT-5.2) by GitLab Duo support reasoning?

Yes, Agentic Chat (GPT-5.2) by GitLab Duo supports advanced reasoning capabilities.

Is Agentic Chat (GPT-5.2) by GitLab Duo open source?

No, Agentic Chat (GPT-5.2) by GitLab Duo has closed weights. The model is only available through the GitLab Duo API.

Does Agentic Chat (GPT-5.2) support function calling?

Yes, Agentic Chat (GPT-5.2) by GitLab Duo supports tool calling (also known as function calling), allowing it to interact with external tools and APIs during conversations.

What is the knowledge cutoff date for Agentic Chat (GPT-5.2)?

Agentic Chat (GPT-5.2) by GitLab Duo has a knowledge cutoff date of 2025-08-31. This means the model was trained on data available up until that date.

Back to Models

Agentic Chat (GPT-5.2) API

GitLab Duo

About

Build advanced reasoning agents with Agentic Chat (GPT-5.2), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access Agentic Chat (GPT-5.2) via the GitLab Duo API with up to 128K output tokens.

Capabilities

Input Modalities

textimage

Output Modalities

text

Reasoning

Yes

Structured Output

Yes

Tool Use

Yes

WeightsClosed

Temperature

Fixed

Attachment

Supported

Limits

Context Window

400K

Tokens

Input Limit

272K

Tokens

Max Output

128K

Tokens

Pricing

Standard (per 1M tokens)

Input

Free

Output

Free

Frequently Asked Questions

Agentic Chat (GPT-5.2) by GitLab Duo costs Free per 1M input tokens and Free per 1M output tokens.

Model Details

duo-chat-gpt-5-2

Provider

GitLab Duo

Family

gpt

Release Date

Jan 23, 2026

Knowledge Cutoff

Aug 31, 2025

API Integration

NPM Package

gitlab-ai-provider

Environment Variables

GITLAB_TOKEN

Documentation