Is Claude or ChatGPT better for coding?
For coding, Claude and ChatGPT now offer the same two layers: a chat app for questions and snippets, and a coding agent that works in your repo. On Anthropic's side that agent is Claude Code; on OpenAI's side it is Codex. Which is better depends on your tasks, your budget and which models you prefer, and neither company's docs publish a head-to-head verdict.
This guide sticks to official facts: which models each uses, where each agent runs, what the plans include and how they keep you in control. It makes no benchmark claims.
What does each offer for coding?
Claude. The Claude app on web, desktop and mobile handles chat, file creation, code execution and artifacts, all listed on the free plan at claude.com/pricing. For real repo work there is Claude Code, "an agentic coding tool that reads your codebase, edits files, runs commands, and integrates with your development tools." It runs in the terminal, VS Code and Cursor, JetBrains, the Claude desktop app and in the browser at claude.ai/code.
ChatGPT. OpenAI's docs list the ChatGPT desktop app, mobile app and web, plus the Codex CLI, Codex IDE extension and Codex Cloud. In the desktop app you "Choose ChatGPT or Codex," and ChatGPT itself has a Chat or Work toggle. The Codex CLI lets you "Inspect code, make changes, run commands, and automate repeatable work without leaving your terminal," and Codex Cloud runs tasks in a cloud environment while your computer is asleep.
So the fair comparison is mostly Claude Code against Codex. For a deeper look at just the two agents, see Codex vs Claude Code.
Claude vs ChatGPT for coding: side by side
| Claude | ChatGPT | |
|---|---|---|
| Coding agent | Claude Code | Codex |
| Agent surfaces | Terminal, VS Code and Cursor, JetBrains, desktop app, web, mobile | Desktop app, CLI, IDE extension, Codex Cloud on web and mobile |
| Current models | Fable 5.1, Opus 5.5, Sonnet 5.5, Haiku 5.5 | GPT-6 Astra, GPT-6.1 Sol, GPT-6 Luna |
| Agent default model | Opus 5.5 on paid plans | A recommended model, depending on plan and client |
| Free plan coding agent | No | Codex in the desktop app, GPT-6 Luna, subject to rollout |
| Entry paid plan | Pro, $20 a month | Plus, $20 a month |
| Per-token option | Claude Console account | OpenAI API key |
| Safety default | Auto mode, where a classifier reviews actions; Manual mode asks first | OS sandbox, workspace writes, no network |
| Project instructions | CLAUDE.md, or AGENTS.md when there is no CLAUDE.md |
AGENTS.md |
| Skills folder | .claude/skills/ |
.agents/skills/ |
| Code review | GitHub Code Review, /code-review |
Code Review plugin, GitHub reviews |
Prices are as of October 2026 and change often, so check the linked pages before you buy.
Which models does each use?
Anthropic's models overview lists four current models. It describes Opus 5.5 as "For long-running agentic coding and knowledge work," Sonnet 5.5 as "The best combination of speed and intelligence," Haiku 5.5 as "For high-volume, latency-sensitive tasks," and Fable 5.1 as "For demanding reasoning and long-horizon agentic work." All four have a 1M token context window. Claude Code defaults to Opus 5.5 on Pro, Max, Team, Enterprise and the Anthropic API, and you switch with /model.
OpenAI's Codex models page lists three recommended models: GPT-6 Astra, "Our most capable model for complex work across code, apps, and research"; GPT-6.1 Sol, "Near-Astra performance for complex work at a lower cost than Astra"; and GPT-6 Luna, "Our most efficient model for focused, high-volume tasks." If you pick nothing, Codex uses "a recommended model," and availability depends on plan, client and rollout.
What do the plans include for coding?
Claude, per claude.com/pricing as of October 2026:
- Free, $0: chat, file creation and code execution, artifacts, skills and connectors, with Sonnet and Haiku. No Claude Code.
- Pro, $20 a month or $17 a month billed annually: adds Claude Code and Opus models.
- Max, from $100 a month: more usage, in 5x and 20x options.
- Team, standard seats at $25 per seat monthly or $20 billed annually, for teams of 2 to 150.
ChatGPT, per OpenAI's Codex pricing page as of October 2026:
- Free, $0, and Go, $8 a month: "GPT-6 Luna at Standard speed in the desktop app, subject to rollout."
- Plus, $20 a month: "Codex on the web, in the CLI, in the IDE extension, and on iOS," plus cloud integrations such as automatic code review and Slack.
- Pro, from $100 a month: plans at $100, $200 or $500.
- Business, $20 per user per month billed annually, or $25 billed monthly.
Both also bill per token: Claude Code through a Claude Console account, Codex through an OpenAI API key. OpenAI notes that API key access excludes cloud features such as GitHub code review and Slack.
How do the coding agents keep you in control?
The two take different starting points.
Claude Code reviews actions. On v2.1.283 or later, interactive terminal and VS Code sessions start in auto permission mode, which runs "Everything, with background safety checks" from a classifier model. Switch to Manual mode, which "stops and asks you before most actions that edit files, run shell commands, or reach the network," when you want to approve each step, or tune it with allow rules and acceptEdits. See the Claude Code permissions guide.
Codex sandboxes first. OpenAI's approvals and security page says: "By default, the agent runs with network access turned off." Locally it uses an OS-enforced sandbox, typically limited to the current workspace. In the Auto preset, Codex can edit and run commands in the working directory, and asks before it edits outside it or needs the network.
Both support Agent Skills, MCP servers and subagents. Claude Code reads .claude/skills/, and Codex scans .agents/skills/ from your working directory up to the repo root. OpenAI's skills docs say skills "build on the open agent skills standard," so one SKILL.md folder works in both tools. The Codex skills guide and Claude Code skills guide cover the folders.
Which should you pick for coding?
Pick Claude if:
- You want Claude models, from Haiku for quick jobs to Opus and Fable for long agentic work.
- You want agent actions reviewed by a classifier by default, with a Manual mode that asks before each step.
- You want the agent in JetBrains, VS Code and Cursor, the terminal and the browser.
- You already use the Claude app for writing and want coding on the same plan.
Pick ChatGPT if:
- You want OpenAI's GPT-6 models.
- You want to try a coding agent before paying, since Free and Go list Codex in the desktop app, subject to rollout.
- You prefer a sandbox with no network access as the starting point.
- You already pay for ChatGPT and want Codex Cloud for tasks that run while you are away.
You can also keep both. Put shared project rules in AGENTS.md, which Codex reads and Claude Code reads when there is no CLAUDE.md, and keep skills in a format both understand.
Keep your prompts and skills tool-neutral
Your best coding prompts should not be locked into one chat history. Kipt saves prompts and skills as Markdown in a private GitHub repo you own and installs every skill into Claude Code or Codex with one npx skills add command. If a prompt keeps proving useful, the free SKILL.md generator turns it into a skill folder. For ready-made starting points, see these coding prompts.