Model comparison
Deepseek Coder v2 vs Grok 4.1 Fast
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 35.9 on the Noometry Index.
Last verified . 17 shared benchmarks.
DeepSeekSummary
- They share 17 benchmarks with published results for both. Deepseek Coder v2 scores higher in 2 categories and Grok 4.1 Fast in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 23.6.
- Deepseek Coder v2 has downloadable open weights; the other is API-only.
Side by side
| Deepseek Coder v2 | Grok 4.1 Fast | |
|---|---|---|
| Provider | DeepSeek | xAI |
| Noometry Index | 35.9 | 41.4 |
| Released | 2024-06-17 | 2025-06-27 |
| Weights | Open | Proprietary |
| Context window | — | 128K |
| Max output | — | 30K |
| Input $ / M tokens | — | $0.20 |
| Output $ / M tokens | — | $0.50 |
| Results tracked | 24 | 32 |
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Category by category
Coding Deepseek Coder v2 leads
Deepseek Coder v2: 38.1 (#183), Grok 4.1 Fast: 34.1 (#245)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Coding | 1251 | 1411 |
| LMArena WebDev | — | 1242 |
| BigCodeBench Instruct | 48.2% | — |
| BigCodeBench Complete | 59.7% | — |
| ALE-Bench | — | 394.93 |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |
Agentic & Tool Use Not comparable
Deepseek Coder v2: —, Grok 4.1 Fast: 36.3 (#39)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 69.6% |
| τ²-bench Banking | — | 13.1% |
| LMArena Search | — | 1171 |
| Vending-Bench 2 | — | 1,107 |
Reasoning Grok 4.1 Fast leads
Deepseek Coder v2: 23.6 (#176), Grok 4.1 Fast: 43.4 (#49)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Hard Prompts | 1207 | 1407 |
| SimpleBench | — | 56% |
| NYT Connections (extended) | — | 87.4% |
| DTBench | — | 87.7% |
| ForecastBench | — | 61 |
| WinoGrande | 83.7% | — |
Math Deepseek Coder v2 leads
Deepseek Coder v2: 34.9 (#190), Grok 4.1 Fast: 31.9 (#221)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Math | 1241 | 1408 |
| MathArena Final-Answer Competitions | — | 60.9% |
| ProofBench | — | 4% |
| GSM8K | 94.5% | — |
Knowledge Too close to call
Deepseek Coder v2: 32.3 (#212), Grok 4.1 Fast: 33.1 (#207)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Expert | 1181 | 1399 |
| Vectara Hallucination Rate | — | 17.8% |
| ARC (AI2) Challenge | 64.3% | — |
Multimodal Not comparable
Deepseek Coder v2: —, Grok 4.1 Fast: 37.0 (#76)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Vision | — | 1201 |
Multilingual Grok 4.1 Fast leads
Deepseek Coder v2: 36.3 (#240), Grok 4.1 Fast: 51.0 (#114)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Non-English | 1182 | 1391 |
| LMArena Chinese | 1201 | 1441 |
| LMArena French | 1185 | 1415 |
| LMArena German | 1164 | 1404 |
| LMArena Japanese | 1126 | 1349 |
| LMArena Korean | 1104 | 1361 |
| LMArena Russian | 1188 | 1387 |
| LMArena Spanish | 1153 | 1413 |
Instruction Following Grok 4.1 Fast leads
Deepseek Coder v2: 61.7 (#242), Grok 4.1 Fast: 72.7 (#133)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Instruction Following | 1180 | 1376 |
Long Context Grok 4.1 Fast leads
Deepseek Coder v2: 37.0 (#224), Grok 4.1 Fast: 42.4 (#126)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Longer Query | 1219 | 1390 |
Writing & Preference Grok 4.1 Fast leads
Deepseek Coder v2: 38.2 (#253), Grok 4.1 Fast: 57.2 (#131)
| Benchmark | Deepseek Coder v2 | Grok 4.1 Fast |
|---|---|---|
| LMArena Text | 1191 | 1408 |
| LMArena Creative Writing | 1120 | 1394 |
| LMArena Multi-Turn | 1177 | 1389 |
| EQ-Bench Creative Writing | — | 1327 |
Frequently asked questions
Is Deepseek Coder v2 better than Grok 4.1 Fast?
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 35.9 on the Noometry Index.
Is Deepseek Coder v2 or Grok 4.1 Fast better for coding?
Deepseek Coder v2 scores higher on coding benchmarks: 38.1 versus 34.1 in the Noometry coding category.
How many benchmarks do Deepseek Coder v2 and Grok 4.1 Fast share?
17 benchmarks have published results for both models. Deepseek Coder v2 has 24 scored results on Noometry and Grok 4.1 Fast has 32.