Coding & Developer Tools

Codex alternatives

Explore 8 options alongside Codex (OpenAI), a product in Coding & Developer Tools.

Candidates share an existing guide group, a comparison, or specific tags within the same category. This shortlist is not a ranking or a test result.

Amp

Listed together in guide “AI coding tools”

Agentic coding tool from Sourcegraph that runs locally or in remote orbs, writing and shipping code from the terminal, editors, web, and phone.

Paid

Use cases

  • Delegating multi-file coding tasks from the terminal, editor, or phone
  • Running parallel agents in remote orbs without local worktrees
  • Replacing an individual Cody workflow with an agentic tool

Pricing: Amp is sold as paid Megawatt ($20/month) and Gigawatt ($200/month) subscriptions that include agent usage and orb hours, or as unconstrained usage billing. Individual Cody Free and Pro plans ended in 2025.

Pricing ↗ · Documentation ↗ · Sources

This record was last reviewed on 2026-10-09.

Aider

Listed together in guide “AI coding tools”

Open-source command-line tool for AI pair programming that edits code in your local git repository.

Open (open weights/source) Apache-2.0

Use cases

  • Making multi-file code changes from natural-language requests
  • Refactoring or extending an existing codebase from the terminal
  • Pair programming with local or hosted models without leaving the CLI

Pricing: Aider is free and open source (Apache-2.0); the only cost is API usage for the LLM you connect, or nothing when using a local model.

Documentation ↗ · Sources

This record was last reviewed on 2026-10-10.

Claude Code

Listed together in guide “AI coding tools”

Anthropic's agentic coding tool that works in the terminal, editing files, running commands, and completing tasks across a codebase.

Paid

Use cases

  • Implementing features and bug fixes end to end from the terminal
  • Large refactors that span many files
  • Automating repetitive engineering chores in CI or scripts

Pricing: Claude Code is included with Claude paid plans and is also available through usage-priced API access.

Pricing ↗ · Documentation ↗ · Sources

This record was last reviewed on 2026-10-09.

Cline

Listed together in guide “AI coding tools”

Open-source autonomous coding agent for editors and terminals that can edit files, run commands, and use the browser with your approval.

Open (open weights/source) Apache-2.0

Use cases

  • Delegating multi-step coding tasks inside VS Code
  • Debugging with an agent that can run commands and inspect output
  • Extending agent capabilities with MCP tools

Pricing: Cline is free and open source for individual developers; costs come from model usage via your own API keys or Cline's usage-based access. Enterprise plans add team controls.

Pricing ↗ · Documentation ↗ · Sources

This record was last reviewed on 2026-10-10.

Devin

Listed together in guide “AI coding tools”

Autonomous AI software engineer that plans and completes end-to-end development tasks in its own sandboxed workspace.

Paid

Use cases

  • Clearing well-scoped tickets and bug fixes autonomously
  • Code migrations and dependency upgrades
  • Prototyping features that engineers then review and refine

Pricing: Devin is a paid product with subscription plans; usage is metered by agent working time.

Pricing ↗ · Documentation ↗ · Sources

This record was last reviewed on 2026-10-10.

Factory

Listed together in guide “AI coding tools”

Agent-native software development platform from Factory AI that uses Droids to plan, write, test, and ship code across the software lifecycle.

Paid

Use cases

  • Turning a ticket into a reviewed pull request with an agent
  • Running parallel coding missions across a large codebase
  • Enterprise SDLC automation with permission and audit controls

Pricing: Factory is a paid enterprise product. Pricing is sold by Factory and varies by deployment model, including SaaS, hybrid, on-prem, and air-gapped.

Pricing ↗ · Documentation ↗ · Sources

This record was last reviewed on 2026-09-04.

Gemini CLI

Listed together in guide “AI coding tools”

Google's open-source terminal agent that brings Gemini models to the command line for coding, research, and task automation.

Open (open weights/source) Apache-2.0

Use cases

  • Coding and debugging from the terminal
  • Automating shell and file tasks
  • Research and Q&A in the command line

Pricing: Free with generous limits for individual Google accounts; higher usage is available through paid Google AI and API plans.

Sources

This record was last reviewed on 2026-09-10.

Muse Code

Listed together in guide “AI coding tools”

Meta's terminal-native coding agent, now generally available, that plans, edits, and coordinates multi-agent engineering work with Muse Spark models.

Paid

Use cases

  • Implementing features and fixes from the terminal with a Meta-hosted model
  • Coordinating parallel subagents on large engineering tasks
  • Embedding Muse Code sessions in custom tools via the SDK

Pricing: Muse Code is billed through Meta Model API usage, with monthly subscription plans that include more affordable Muse Spark usage than pay-as-you-go pricing.

Documentation ↗ · Sources

This record was last reviewed on 2026-10-09.

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