Model comparison
gpt-oss-20b vs Grok 2 Mini 2024 08 13
Grok 2 Mini 2024 08 13 is the stronger model overall, scoring 37.7 to 32.5 on the Noometry Index.
Last verified . 16 shared benchmarks.
Summary
- They share 16 benchmarks with published results for both. gpt-oss-20b scores higher in 4 categories and Grok 2 Mini 2024 08 13 in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 2 Mini 2024 08 13 leads 47.3 to 35.5.
- gpt-oss-20b has downloadable open weights; the other is API-only.
Side by side
| gpt-oss-20b | Grok 2 Mini 2024 08 13 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 32.5 | 37.7 |
| Released | 2025-08-05 | 2024-08-13 |
| Weights | Open | Proprietary |
| Context window | 131K | — |
| Max output | 16K | — |
| Input $ / M tokens | $0.018 | — |
| Output $ / M tokens | $0.09 | — |
| Results tracked | 34 | 17 |
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Category by category
Coding Too close to call
gpt-oss-20b: 37.6 (#192), Grok 2 Mini 2024 08 13: 37.0 (#199)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Coding | 1306 | 1269 |
| SciCode | 34.4% | — |
| WeirdML | 40.9% | — |
| ALE-Bench | 566.05 | — |
Agentic & Tool Use Not comparable
gpt-oss-20b: 9.3 (#154), Grok 2 Mini 2024 08 13: —
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| Terminal-Bench | 3.4% | — |
Reasoning Grok 2 Mini 2024 08 13 leads
gpt-oss-20b: 19.3 (#261), Grok 2 Mini 2024 08 13: 24.8 (#159)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Hard Prompts | 1274 | 1255 |
| Kagi LLM Benchmark | 53.2% | — |
| CritPt | 1.4% | — |
| Chess Puzzles | 4% | — |
| DTBench | 68% | — |
| LMCA | 14.5% | — |
| Epoch Capabilities Index | 137.82 | — |
Math gpt-oss-20b leads
gpt-oss-20b: 39.4 (#103), Grok 2 Mini 2024 08 13: 35.4 (#185)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Math | 1317 | 1265 |
| OTIS Mock AIME 2024-2025 | 65.3% | — |
| Omni-MATH | 56.5% | — |
Knowledge Too close to call
gpt-oss-20b: 34.6 (#195), Grok 2 Mini 2024 08 13: 33.9 (#200)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Expert | 1258 | 1238 |
| GPQA Diamond | 60.8% | — |
| MMLU-Pro | 74% | — |
| GPQA (HELM) | 59.4% | — |
Multilingual Too close to call
gpt-oss-20b: 42.2 (#197), Grok 2 Mini 2024 08 13: 41.4 (#208)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Non-English | 1268 | 1257 |
| LMArena Chinese | 1314 | 1262 |
| LMArena German | 1255 | 1273 |
| LMArena Japanese | 1244 | 1213 |
| LMArena Korean | 1236 | 1195 |
| LMArena Russian | 1278 | 1261 |
| LMArena Spanish | 1267 | 1279 |
| LMArena French | — | 1286 |
Instruction Following Grok 2 Mini 2024 08 13 leads
gpt-oss-20b: 61.8 (#240), Grok 2 Mini 2024 08 13: 65.5 (#220)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Instruction Following | 1236 | 1245 |
| IFEval | 73.2% | — |
Long Context Too close to call
gpt-oss-20b: 37.9 (#209), Grok 2 Mini 2024 08 13: 38.4 (#196)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Longer Query | 1250 | 1266 |
Writing & Preference Grok 2 Mini 2024 08 13 leads
gpt-oss-20b: 35.5 (#265), Grok 2 Mini 2024 08 13: 47.3 (#211)
| Benchmark | gpt-oss-20b | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Text | 1287 | 1281 |
| LMArena Creative Writing | 1201 | 1242 |
| LMArena Multi-Turn | 1268 | 1265 |
| EQ-Bench Creative Writing | 666 | — |
| WildBench | 73.7% | — |
Frequently asked questions
Is gpt-oss-20b better than Grok 2 Mini 2024 08 13?
Grok 2 Mini 2024 08 13 is the stronger model overall, scoring 37.7 to 32.5 on the Noometry Index.
Is gpt-oss-20b or Grok 2 Mini 2024 08 13 better for coding?
They score almost the same on coding (37.6 vs 37.0); test both on your own repository before choosing.
How many benchmarks do gpt-oss-20b and Grok 2 Mini 2024 08 13 share?
16 benchmarks have published results for both models. gpt-oss-20b has 34 scored results on Noometry and Grok 2 Mini 2024 08 13 has 17.