GPT-6 Astra vs MiniMax M3.1 Flash
| Benchmark | GPT-6 Astra | MiniMax M3.1 Flash |
|---|---|---|
| MMMU-Pro (vision) | 85.1 | 79.1 |
| GDP.pdf · AA all-pass | 30.4 | 20.8 |
| Chartography | 71 · max | — |
| Arena Document · overall | 1,467.5 · max | — |
| Arena Vision · overall | 1,279.9 · max | — |
Specs
| Spec | GPT-6 Astra | MiniMax M3.1 Flash |
|---|---|---|
| Input, per 1M | $10 | $0.15 |
| Output, per 1M | $50 | $0.60 |
| Cost per task? | $1.54 | $0.22 |
| Speed, tok/s | 59 | 121 |
| Context | 1.05M | 1M |
| Weights | Closed | Closed |
| Released | Sep 2026 | Oct 2026 |
| See images | ✓ | ✓ |
| Read PDFs | Partial | — |
| Hear audio | — | — |
| Watch video | — | ✓ |
| Call tools | ✓ | ✓ |
| Force a tool call | Partial | ? |
| Return strict JSON | ✓ | — |
| Search the web | ✓ | ? |
| Run code | ✓ | ? |
| Use a computer | ✓ | ? |
What breaks when you switch
GPT-6 Astra → MiniMax M3.1 Flash
Context: 1.05M → 1M
No strict JSON
Complete model response must be appended›
In multi-turn tools, preserve the complete assistant response, including reasoning_content and tool_calls, to maintain reasoning continuity.
MiniMax M3.1 Flash → GPT-6 Astra
Monitoring can return HTTP 403›
Misalignment monitoring can return HTTP 403 before streaming or errors after output; match misalignment_policy_violation and handle stream errors.
No none reasoning effort›
The none reasoning effort is unsupported on GPT-6 Astra and GPT-6.1 Sol; use low instead.
Remove unsupported sampling parameters›
When reasoning effort is not none, remove temperature, top_p and top_logprobs, plus Chat Completions logprobs or Responses output logprobs inclusion.