chatgpt-4o-latest vs Claude 4 Sonnet
Claude 4 Sonnet is cheaper on output tokens, while Claude 4 Sonnet offers a larger context window. Choose chatgpt-4o-latest or Claude 4 Sonnet based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | chatgpt-4o-latest | Claude 4 Sonnet |
|---|---|---|
| Provider | 302.AI | NanoGPT |
| Input / 1M tokens | $5.00 | $2.99 |
| Output / 1M tokens | $15.00 | $14.99 |
| Context window | 128K | 200K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Aug 2024 | Sep 2025 |
| Aider Polyglot score | 45.3 | — |
| LMArena (Chatbot Arena) Elo score | 1428 | — |
| LMArena Vision Elo score | 1243 | — |
| LiveBench score | — | 60.6 |
| SWE-bench Verified score | — | 76.4 |
| SWE-bench Multimodal score | — | 35.6 |
FAQ
Is chatgpt-4o-latest or Claude 4 Sonnet cheaper?
Claude 4 Sonnet is cheaper on output tokens ($14.99 vs $15.00 per 1M).
Which has the larger context window, chatgpt-4o-latest or Claude 4 Sonnet?
Claude 4 Sonnet has the larger context window (200K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.