Claude Code
Coding agents
Anthropic's terminal coding agent
- Pricing
- Bundled with Claude Pro $20/mo
- Used in
- 2 stacks
- Updated
- 2026-05-05
Head-to-head comparison
Claude Code vs Codex: 2026 comparison
Side-by-side: pricing, category, alternatives, and which AI stacks on aistack.sh use each tool today.
· 2 weeks ago
Quick answer
Both are CLI-first coding agents from frontier labs. Claude Code leans further into autonomy — subagents, MCP, file-system-aware planning. OpenAI Codex CLI leans into reasoning depth, with GPT-5 / o-series models doing more silent thinking before acting. Pick by model family preference; the form factor is similar.
Claude Code and Codex are alternatives in the Coding agents category. Claude Code pricing: Bundled with Claude Pro $20/mo · Max $100-200/mo · API metered. Codex pricing: Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered. Claude Code ships in 2 tested AI stacks on aistack.sh; Codex ships in 1. Pick Claude Code when you want anthropic's terminal coding agent. Pick Codex when you want openai's coding agent: cli + autonomous cloud prs.
When to pick which
Pick Claude Code when
- You prefer Claude's writing and explanation style.
- You rely on MCP servers — Claude Code's MCP integration is the most mature CLI implementation.
- You want subagents (parallel exploration, research, QA) as a first-class feature.
- You're already on a Claude API plan and want the CLI to match.
Pick Codex when
- You prefer GPT-5 / o-series for deep reasoning on hard problems.
- You're already on an OpenAI API plan.
- You want the most aggressive default 'think before acting' behavior.
- Your work skews toward novel algorithm or math-heavy code where o-series benchmarks win.
At a glance
Codex
Coding agents
OpenAI's coding agent: CLI + autonomous cloud PRs
- Pricing
- Bundled with ChatGPT Plus $20/mo
- Used in
- 1 stack
- Updated
- 2026-05-05
Pricing
| Tool | Pricing | Free tier |
|---|---|---|
| Claude Code | Bundled with Claude Pro $20/mo · Max $100-200/mo · API metered | No |
| Codex | Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered | No |
Hard differences
| Attribute | Claude Code | Codex |
|---|---|---|
| Vendor | Anthropic | OpenAI |
| Default model | Claude Sonnet 4.6 / Opus 4.7 | GPT-5 / o-series |
| Subagents | First-class | Single-agent |
| MCP support | Native, mature | Yes |
| Best at | Multi-file sweeps + planning | Hard reasoning + novel logic |
Where each ships
Claude Code-only stacks (2)
Codex-only stacks (1)
Claude Code vs Codex FAQ
Should you pick Claude Code or Codex?
Both are CLI-first coding agents from frontier labs. Claude Code leans further into autonomy — subagents, MCP, file-system-aware planning. OpenAI Codex CLI leans into reasoning depth, with GPT-5 / o-series models doing more silent thinking before acting. Pick by model family preference; the form factor is similar.
Which is cheaper, Claude Code or Codex?
Both are priced similarly. Claude Code: Bundled with Claude Pro $20/mo · Max $100-200/mo · API metered. Codex: Bundled with ChatGPT Plus $20/mo · ChatGPT Pro $200/mo · API metered.
What is Claude Code best for?
Anthropic's terminal coding agent Claude Code is categorized as Coding agents and appears in 2 tested AI stacks on aistack.sh.
What is Codex best for?
OpenAI's coding agent: CLI + autonomous cloud PRs Codex is categorized as Coding agents and appears in 1 tested AI stack on aistack.sh.
Can I use Claude Code and Codex together?
They are alternatives at the same step, so most stacks pick one or the other. No aistack.sh stack uses both today, though nothing prevents a custom workflow.
What are the alternatives to Claude Code and Codex?
Beyond each other, Claude Code's closest alternatives are Cursor. Codex's closest alternatives are Cursor.
Also compared
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