Model comparison
GPT-5.5 Instant vs MiniMax-M2
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 37.4 on the Noometry Index.
Last verified . 15 shared benchmarks.
MiniMaxSummary
- They share 15 benchmarks with published results for both. GPT-5.5 Instant scores higher in 7 categories and MiniMax-M2 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.5 Instant leads 48.9 to 37.0.
- MiniMax-M2 has downloadable open weights; the other is API-only.
Side by side
| GPT-5.5 Instant | MiniMax-M2 | |
|---|---|---|
| Provider | OpenAI | MiniMax |
| Noometry Index | 42.7 | 37.4 |
| Released | 2026-05-05 | 2025-10-27 |
| Weights | Proprietary | Open |
| Context window | — | 205K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $1.20 |
| Results tracked | 27 | 21 |
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Category by category
Coding GPT-5.5 Instant leads
GPT-5.5 Instant: 44.3 (#74), MiniMax-M2: 39.3 (#159)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Coding | 1433 | 1370 |
| SWE-bench Verified (bash only) | — | 61% |
| LMArena WebDev | — | 1297 |
| SciCode | 48.6% | — |
Agentic & Tool Use Not comparable
GPT-5.5 Instant: —, MiniMax-M2: 25.1 (#109)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| Terminal-Bench | — | 30% |
| Vending-Bench 2 | — | 160.6 |
Reasoning GPT-5.5 Instant leads
GPT-5.5 Instant: 24.9 (#155), MiniMax-M2: 19.4 (#258)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Hard Prompts | 1426 | 1357 |
| Kagi LLM Benchmark | — | 57.8% |
| NYT Connections (extended) | — | 14.8% |
| CritPt | 0% | — |
| Chess Puzzles | 12% | — |
| Epoch Capabilities Index | 142.52 | — |
Math MiniMax-M2 leads
GPT-5.5 Instant: 26.5 (#259), MiniMax-M2: 37.3 (#160)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Math | 1420 | 1352 |
| FrontierMath (Tiers 1-3) | 26.3% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 68.1% | — |
Knowledge GPT-5.5 Instant leads
GPT-5.5 Instant: 48.9 (#74), MiniMax-M2: 37.0 (#163)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Expert | 1409 | 1337 |
| GPQA Diamond | 82.5% | — |
Multimodal Not comparable
GPT-5.5 Instant: 40.0 (#52), MiniMax-M2: —
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Vision | 1250 | — |
| LMArena Document | 1403 | — |
Multilingual GPT-5.5 Instant leads
GPT-5.5 Instant: 52.8 (#80), MiniMax-M2: 45.3 (#171)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Non-English | 1417 | 1313 |
| LMArena Chinese | 1456 | 1366 |
| LMArena French | 1428 | 1335 |
| LMArena German | 1411 | 1355 |
| LMArena Russian | 1431 | 1331 |
| LMArena Spanish | 1429 | 1326 |
| LMArena Japanese | 1408 | — |
| LMArena Korean | 1392 | — |
Instruction Following GPT-5.5 Instant leads
GPT-5.5 Instant: 74.2 (#100), MiniMax-M2: 70.2 (#166)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Instruction Following | 1406 | 1328 |
Long Context GPT-5.5 Instant leads
GPT-5.5 Instant: 43.4 (#96), MiniMax-M2: 40.5 (#153)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Longer Query | 1422 | 1331 |
Writing & Preference GPT-5.5 Instant leads
GPT-5.5 Instant: 61.8 (#85), MiniMax-M2: 53.0 (#162)
| Benchmark | GPT-5.5 Instant | MiniMax-M2 |
|---|---|---|
| LMArena Text | 1419 | 1340 |
| LMArena Creative Writing | 1419 | 1286 |
| LMArena Multi-Turn | 1433 | 1361 |
Frequently asked questions
Is GPT-5.5 Instant better than MiniMax-M2?
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 37.4 on the Noometry Index.
Is GPT-5.5 Instant or MiniMax-M2 better for coding?
GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 39.3 in the Noometry coding category.
How many benchmarks do GPT-5.5 Instant and MiniMax-M2 share?
15 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and MiniMax-M2 has 21.