Amp
Decision note
Amp is a CLI coding agent from Sourcegraph (sold as a separate product from the main Cody line) designed for autonomous multi-step execution across large codebases. It positions itself as a next-generation terminal agent - focused on long-horizon agentic tasks rather than single-turn completions. Amp is currently in free beta.
Overview
AI coding agent terminal tool designed for autonomous multi-step task execution across codebases, positioned as a next-generation CLI agent.
Best LLMs for this agent
Sourcegraph routes Amp to Claude Opus 4.7 for long-horizon autonomous task execution where stronger planning and reasoning matter.
Claude Sonnet 4.6 is one of Amp's documented defaults for coding work that needs a frontier model without Opus-level cost.
GPT-5 is available for some Amp workflows, with Sourcegraph handling routing rather than exposing direct BYOK selection.
Pricing and Provider Comparison
Featured Model Specs
| Model | Lab | Released | Context | Reasoning | Openness |
|---|---|---|---|---|---|
| Claude Opus 4.7 | Anthropic | 2026-04-16 | 1m | Yes | Proprietary |
| Claude Sonnet 4.6 | Anthropic | 2026-02-17 | 1m | Yes | Proprietary |
| GPT-5 | OpenAI | 2025-08-07 | 400k | Yes | Proprietary |
Model Compatibility Matrix
| Model | Lab | Default | Access tier | Notes |
|---|---|---|---|---|
| Claude Opus 4.7 | Anthropic | Yes | Free beta | Sourcegraph-routed default for autonomous task execution |
| Claude Sonnet 4.6 | Anthropic | No | Free beta | Sourcegraph-routed default for coding workflows |
| GPT-5 | OpenAI | No | Free beta | Available for some Amp workflows |