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MatterAI is an inference company that gives you access to the best open-source and third-party models — DeepSeek V4.1 Flash, GLM 5.3, GLM 5.3 Flash, and Gemini 3.8 Flash — through a single, unified API. Every model ships with up to 1M context windows, native tool calling, and automatic discounts. We also offer agentic AI code reviews that catch bugs before production.

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Inference API

One API key, every model you need. MatterAI hosts open-source and third-party models on high-performance infrastructure, giving you frontier-class capability at a fraction of the cost.

DeepSeek V4.1 Flash

Fast, cost-efficient model with 1M context, vision support, and strong coding performance.

GLM 5.3

Z.ai’s frontier open model for complex coding tasks and long-running agents.

GLM 5.3 Flash

Fast, low-cost open model for everyday coding tasks.

Gemini 3.8 Flash

Google’s fast, low-cost model for everyday coding tasks.

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AI Code Reviews

Agentic PR reviews on GitHub, GitLab, Bitbucket, and Azure DevOps. Catch bugs, security issues, and code quality problems before production with deep codebase memory and automated fix commits.

AI Code Reviews

Agentic PR reviews with deep memory, automated fixes, and security analysis.

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Privacy & Data Residency

MatterAI never trains on your inputs. Your data is temporary, deleted automatically, and never leaves your chosen region (us-east, eu-west, ap-southeast).

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Get Started

Get API Key

Generate an API key and start building

Quick Start

Run your first inference API call in minutes

API Reference

View the full API documentation