Comparing 2
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GPT-6.1 SolvsClaude Sonnet 5.5
Send one prompt to every model and read the answers side by side, with speed and cost for each.
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GPT-6.1 SolOpen AINEW Near-Astra performance for complex coding, computer use, and professional work at a lower cost. | Claude Sonnet 5.5AnthropicNEW Fast Claude model for everyday coding, agents, and knowledge work | |
|---|---|---|
| Intelligence | ||
| Intelligence index | 51.8 | 56 |
| Price | ||
| Input, $ per 1M | $2 | $2 |
| Output, $ per 1M | $10 | $10 |
| Typical message (500 in / 250 out) | $0.0035 | $0.0035 |
| Repeated input, cached | $0.10 · 20× cheaper | $0.10 · 20× cheaper |
| Prompts over 200K tokens | $4 / $15 | Same price |
| Limits | ||
| Context window | 1.05M | 1M |
| Longest answer | 128K tokens | 128K tokens |
| Knowledge cutoff | Apr 2026 | Jun 2026 |
| What it can take and do | ||
| Accepts | TextImagePDF | TextImagePDF |
| Reasoning effort | Low · Med · High · X-high · Max | Low · Med · High · X-high · Max |
| Tool use | Yes | Yes |
| Guaranteed JSON output | Yes | Yes |
| Availability | ||
| Released | 29 Sept 2026 | 28 Sept 2026 |
| Open weights | No | No |
| API providers offering it | 33 | 34 |