Terminal agents
Terminal agents are the engines. They read the repo, edit files and run commands from your shell, and most of the other layers are ways to host one. Pricing usually comes from the vendor plan you sign in with, so the question is less what the tool costs and more which plan it needs.
Aider
Aider AI
Terminal pair programmer written in Python. Edits files in your git repo and commits each change with a message, using your own API keys for almost any model including local ones.
Free2026-08-23
Amp
Sourcegraph
Sourcegraph's terminal agent. Low, medium, high and ultra modes pick the model per task, subagents run in parallel, orbs run threads on remote machines.
Free tier2026-08-23
Claude Code
Anthropic
Anthropic's terminal agent. Reads the codebase, edits files and runs commands, with a VS Code and JetBrains extension and a web surface on the same engine.
From $20/mo2026-08-23
Codex CLI
OpenAI
OpenAI's open source terminal agent. Signs in with a ChatGPT account and shares the plan's usage window, or bills an API key at token prices.
Free tier2026-08-23
Crush
Charmbracelet, Inc.
Terminal coding agent from Charm, written in Go. Works with almost any model provider through your own API keys, plus an optional first-party Hyper plan.
Free tier2026-08-25
fx
Vercel Labs
Vercel Labs' coding agent harness written in Zig, built for research and for embedding in larger systems. A 6 MB CLI closer to a Unix shell than a terminal IDE.
Free2026-08-24
Gemini CLI
Google's open source terminal agent for Gemini models. Since 18 June 2026 it only serves paid Gemini API keys and Vertex AI, Google points individuals to Antigravity CLI.
Usage-based2026-08-23
GitHub Copilot CLI
GitHub
GitHub's terminal agent on the Copilot subscription. Parallel subagents through /fleet, cloud sandboxes, worktrees and remote control from mobile.
Free tier2026-08-24
goose
Block / Agentic AI Foundation
Open source agent from Block under the Agentic AI Foundation. CLI and desktop app, MCP extensions, runs with your own keys or your Claude and ChatGPT subscriptions over ACP.
Free2026-08-23
Grok Build
xAI (SpaceXAI)
xAI's terminal coding agent, a fullscreen TUI in Rust that edits files, runs commands and spawns subagents. Signs in with a grok.com account or an API key, headless or over ACP.
Free tier2026-08-23
Hermes Agent
Nous Research
Nous Research's open source general purpose agent with a terminal TUI, file and shell tools, git worktrees and subagents. Any provider, or a Nous Portal login for 300 plus models.
Free tier2026-08-23
Junie CLI
JetBrains
An AI coding agent by JetBrains that ships code from your terminal, IDE, or CI/CD pipeline, powered by any LLM you choose.
Free tier2026-08-24
Kimi Code CLI
Moonshot AI
Moonshot AI's terminal agent for the Kimi models, a single binary with a VS Code extension. Logs in with a Kimi membership or a platform key, runs in Zed or JetBrains over ACP.
Free tier2026-08-23
Mistral Vibe
Mistral AI
Mistral's open source terminal agent on Devstral and Mistral Medium, with VS Code and JetBrains extensions and a web sandbox. Signs in with a Mistral account or an API key.
Free tier2026-08-24
OpenCode
Anomaly
Open source terminal coding agent from Anomaly, with a desktop app in beta and a VS Code extension. Works with any provider through your own keys, plus the hosted Zen and Go plans.
Free tier2026-08-23
Pi
Earendil
Minimal terminal coding harness from Mario Zechner, now maintained by Earendil. Four built in tools, tree structured sessions, and TypeScript extensions for everything else.
Free2026-08-23
Also available as a terminal agent (12)
Products whose primary form is something else but ship one of these too.
Amazon Q Developer
Amazon Web Services
AWS's assistant in IDE plugins and a CLI. New signups closed in May 2026 and support ends 30 April 2027, AWS points subscribers to Kiro.
Free tier2026-08-24
Augment Code
Augment Code
Augment's agent and Context Engine in VS Code, JetBrains and Vim, the Auggie CLI and Cosmos cloud Experts. One flat Business plan covers up to 50 seats.
From $100/mo2026-08-23
BLACKBOX AI
BLACKBOX AI
BLACKBOX AI's VS Code extension, CLI and web app with chat, completions and a multi-agent mode that fans one task out to Blackbox, Claude Code, Codex and Gemini.
Free tier2026-08-23
Cline
Cline Bot Inc.
Open source agent for VS Code, JetBrains and the terminal. Bring your own key for any provider, local models included, with an MCP marketplace and plan-then-act modes.
Free tier2026-08-23
Continue
Continue
Apache-2.0 coding agent for VS Code and JetBrains with a terminal CLI, configured in YAML for any provider. Cursor acquired the team in June 2026, the repo is read-only.
Free2026-08-23
Cursor
Anysphere
The VS Code fork that popularised AI-native editing. Cursor 3 replaced Composer with an Agents window and Cursor Router picks models by cost, balance or intelligence.
Free tier2026-08-25
Factory
Factory
Factory's Droid agent runs from the terminal, a desktop app, the web and Slack, on your machine or managed Droid Computers, with models from several vendors and BYOK.
From $20/mo2026-08-23
Google Antigravity
Google's agentic development platform. A desktop app, a VS Code based IDE, a CLI and editor extensions share one harness. Free, with higher limits on Google AI Pro and Ultra.
Free tier2026-08-23
Kilo Code
Kilo
Open source agent for VS Code, JetBrains and the terminal, with cloud agents and a phone app. The Kilo Gateway serves 500+ models at provider rates, or bring your own keys.
Free tier2026-08-23
Kiro
Amazon Web Services
AWS's agentic IDE on a VS Code foundation, with a CLI, a web agent and an iOS app sharing one .kiro config. Specs, steering and hooks drive the agent. Plans are priced in credits.
Free tier2026-08-23
