Summary table
| Criterion | ChatGPT (GPT-4o) | Claude 4.7 |
|---|---|---|
| Effective context | ~128K tokens | 200K tokens |
| Long-form reasoning | Solid | Better |
| Code generation | Good | Better |
| Images (DALL-E) | Yes | No |
| Native voice mode | Yes | No |
| Pro price | $20/mo | $20/mo |
| Cheaper API | Tie | Tie |
Test 1 · Code refactor
Same 420-line React component, asked both to split it into typed sub-components.
- Claude 4.7: correct types first shot, 0 broken imports
- GPT-4o: 2 broken imports, missed a
'use client'directive
Winner: Claude.
Test 2 · Long PDF analysis
Same 87-page PDF, asked both for a summary flagging risky clauses.
- Claude 4.7: 7 clauses flagged, all verifiable
- GPT-4o: 5 flagged, missed the most critical one
Winner: Claude.
Test 3 · Voice and multimodality
GPT-4o flies here: native voice mode, live translation, image reading backed by a solid visual stack.
Winner: ChatGPT.
Recommendation by profile
- Full-time developer → Claude Pro
- Marketing / visual content → ChatGPT Plus
- Need both → subscribe to both ($40/mo total), still cheaper than hiring a junior