Codex (OpenAI) vs Claude Design (Anthropic)
Which one should you pick? Here's the full breakdown.
Codex (OpenAI)
OpenAI's cloud-based coding agent -- runs parallel tasks, proposes PRs, and lives inside ChatGPT
Powered by GPT-5.3-Codex / GPT-5.4
Claude Design (Anthropic)
Anthropic's AI-native design tool -- launched 2026-04-17, built on Opus 4.7. Generates full design systems, website prototypes, slide decks, and one-pagers from natural language. Positioned as a Figma / Canva / Adobe starter-replacement (Figma stock dropped 5% on the launch news)
| Category | Codex (OpenAI) | Claude Design (Anthropic) |
|---|---|---|
| Ease of Use | 8.0 | 9.0 |
| Output Quality | 8.0 | 8.5 |
| Value | 8.0 | 8.0 |
| Features | 9.0 | 8.0 |
| Overall | 8.3 | 8.4 |
Pricing Comparison
| Feature | Codex (OpenAI) | Claude Design (Anthropic) |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Benchmark Head-to-Head
GPT-5.3-Codex benchmarks — Claude Design (Anthropic) has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| SWE-bench | Real GitHub issue fixing | 72% |
| HumanEval | Python code generation | 95% |
Which Should You Pick?
Pick Codex (OpenAI) if...
- ✓More features (9 vs 8)
Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. Especially good for parallel task execution -- assign multiple bug fixes or feature branches and let Codex work them simultaneously.
Visit Codex (OpenAI)Pick Claude Design (Anthropic) if...
- ✓Easier to use (9 vs 8)
Designers who use Claude Pro or Max and want an AI starting point for design systems, prototypes, slide decks, or one-pagers -- especially when the design decisions need to be internally consistent across many screens or slides. Also good for non-designer product managers and founders who need credible deliverables without hiring.
Visit Claude Design (Anthropic)Our Verdict
Codex (OpenAI) and Claude Design (Anthropic) are extremely close overall. Your choice comes down to specific needs -- Codex (OpenAI) is better for developers already paying for chatgpt plus who want a coding agent at no extra cost, while Claude Design (Anthropic) works best for designers who use claude pro or max and want an ai starting point for design systems, prototypes, slide decks, or one-pagers -- especially when the design decisions need to be internally consistent across many screens or slides.