Model comparison
GPT-5.5 Pro vs Grok 2 Mini 2024 08 13
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 37.7 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.3 to 24.8.
Side by side
| GPT-5.5 Pro | Grok 2 Mini 2024 08 13 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 64.3 | 37.7 |
| Released | 2026-04-23 | 2024-08-13 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $180 | — |
| Results tracked | 14 | 17 |
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Category by category
Coding Not comparable
GPT-5.5 Pro: —, Grok 2 Mini 2024 08 13: 37.0 (#199)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Coding | — | 1269 |
Reasoning GPT-5.5 Pro leads
GPT-5.5 Pro: 73.3 (#10), Grok 2 Mini 2024 08 13: 24.8 (#159)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| LMArena Hard Prompts | — | 1255 |
| DTBench | 96% | — |
| LMCA | 53.9% | — |
| Epoch Capabilities Index | 162.07 | — |
Math GPT-5.5 Pro leads
GPT-5.5 Pro: 84.0 (#10), Grok 2 Mini 2024 08 13: 35.4 (#185)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| LMArena Math | — | 1265 |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |
Knowledge GPT-5.5 Pro leads
GPT-5.5 Pro: 64.1 (#19), Grok 2 Mini 2024 08 13: 33.9 (#200)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| GPQA Diamond | 93.9% | — |
| LMArena Expert | — | 1238 |
Multilingual Not comparable
GPT-5.5 Pro: —, Grok 2 Mini 2024 08 13: 41.4 (#208)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Non-English | — | 1257 |
| LMArena Chinese | — | 1262 |
| LMArena French | — | 1286 |
| LMArena German | — | 1273 |
| LMArena Japanese | — | 1213 |
| LMArena Korean | — | 1195 |
| LMArena Russian | — | 1261 |
| LMArena Spanish | — | 1279 |
Instruction Following Not comparable
GPT-5.5 Pro: —, Grok 2 Mini 2024 08 13: 65.5 (#220)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Instruction Following | — | 1245 |
Long Context Not comparable
GPT-5.5 Pro: —, Grok 2 Mini 2024 08 13: 38.4 (#196)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Longer Query | — | 1266 |
Writing & Preference Not comparable
GPT-5.5 Pro: —, Grok 2 Mini 2024 08 13: 47.3 (#211)
| Benchmark | GPT-5.5 Pro | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Text | — | 1281 |
| LMArena Creative Writing | — | 1242 |
| LMArena Multi-Turn | — | 1265 |
Frequently asked questions
Is GPT-5.5 Pro better than Grok 2 Mini 2024 08 13?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 37.7 on the Noometry Index.
How many benchmarks do GPT-5.5 Pro and Grok 2 Mini 2024 08 13 share?
0 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Grok 2 Mini 2024 08 13 has 17.