How do I use Morph models through the OpenRouter API?

OpenRouter serves 6 Morph models behind one OpenAI-compatible API. Create an OpenRouter API key, point your client at https://openrouter.ai/api/v1, and set the model to an ID such as morph/reflex. The quickstart has request examples for every supported SDK.

Which Morph model has the largest context window?

Morph V3 Large has the largest context window of any Morph model on OpenRouter, accepting up to 262,144 tokens per request.

What is the newest Morph model on OpenRouter?

Reflex is the most recently added Morph model on OpenRouter, listed on November 3, 2026.

Morph API and Models

Reflex

2.92B tokens

Morph's decision model. Answers typed choice, noul and score questions about a state. The state is prefix-cached across requests, so repeat questions on the same state bill at the cached-input rate. 65k context window.

by morph$0.042/M input $0/M output

Morph V3 Large

44.6M tokens

Morph's high-accuracy apply model for complex code edits. ~4,500 tokens/sec with 98% accuracy for precise code transformations. The model requires the prompt to be in the following format: <instruction>{instruction}</instruction> <code>{initial_code}</code> <update>{edit_snippet}</update> Zero Data Retention is enabled for Morph. Learn more about this model in their documentation

by morph262K context$0.90/M input $1.90/M output

Morph V3 Large (batch)

133K tokens

Morph's high-accuracy apply model for complex code edits. ~4,500 tokens/sec with 98% accuracy for precise code transformations. The model requires the prompt to be in the following format: <instruction>{instruction}</instruction> <code>{initial_code}</code> <update>{edit_snippet}</update> Zero Data Retention is enabled for Morph. Learn more about this model in their documentation

by morph262K context$0.45/M input $0.95/M output

Morph V3 Fast

88.4M tokens

Morph's fastest apply model for code edits. ~10,500 tokens/sec with 96% accuracy for rapid code transformations. The model requires the prompt to be in the following format: <instruction>{instruction}</instruction> <code>{initial_code}</code> <update>{edit_snippet}</update> Zero Data Retention is enabled for Morph. Learn more about this model in their documentation

by morph262K context$0.80/M input $1.20/M output

Morph V3 Fast (batch)

Morph's fastest apply model for code edits. ~10,500 tokens/sec with 96% accuracy for rapid code transformations. The model requires the prompt to be in the following format: <instruction>{instruction}</instruction> <code>{initial_code}</code> <update>{edit_snippet}</update> Zero Data Retention is enabled for Morph. Learn more about this model in their documentation

by morph82K context$0.40/M input $0.60/M output

Fast Apply

Morph Apply is a specialized code-patching LLM that merges AI-suggested edits straight into your source files. It can apply updates from GPT-4o, Claude, and others into your files at 4000+ tokens per second. The model requires the prompt to be in the following format: <code>${originalCode}</code>\n<update>${updateSnippet}</update> Learn more about this model in their documentation

by morph32K context

Morph

Documentation

Frequently asked questions

Morph

Documentation

Frequently asked questions