Model comparison
DeepSeek-V3.1-Terminus vs Grok 4.1
DeepSeek-V3.1-Terminus is the stronger model overall, scoring 43.1 to 41.5 on the Noometry Index.
Last verified . 10 shared benchmarks.
DeepSeekSummary
- They share 10 benchmarks with published results for both. DeepSeek-V3.1-Terminus scores higher in 3 categories and Grok 4.1 in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in coding, where DeepSeek-V3.1-Terminus leads 42.0 to 33.7.
- DeepSeek-V3.1-Terminus has downloadable open weights; the other is API-only.
Side by side
| DeepSeek-V3.1-Terminus | Grok 4.1 | |
|---|---|---|
| Provider | DeepSeek | xAI |
| Noometry Index | 43.1 | 41.5 |
| Released | 2025-09-22 | 2025-11-17 |
| Weights | Open | Proprietary |
| Context window | 164K | — |
| Max output | 147K | — |
| Input $ / M tokens | $0.27 | — |
| Output $ / M tokens | $1 | — |
| Results tracked | 16 | 19 |
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Category by category
Coding DeepSeek-V3.1-Terminus leads
DeepSeek-V3.1-Terminus: 42.0 (#113), Grok 4.1: 33.7 (#253)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Coding | 1426 | 1445 |
| LMArena WebDev | — | 1214 |
| SciCode | 40.6% | — |
| ALE-Bench | 745.17 | — |
Agentic & Tool Use Not comparable
DeepSeek-V3.1-Terminus: —, Grok 4.1: 34.1 (#49)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| Cybench | — | 39% |
Reasoning Grok 4.1 leads
DeepSeek-V3.1-Terminus: 26.4 (#133), Grok 4.1: 29.5 (#91)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Hard Prompts | 1426 | 1435 |
| Kagi LLM Benchmark | 57.4% | — |
| CritPt | 1.7% | — |
| DTBench | 81.3% | — |
| LMCA | 28.6% | — |
Math Too close to call
DeepSeek-V3.1-Terminus: 38.5 (#137), Grok 4.1: 38.9 (#120)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Math | 1402 | 1422 |
Knowledge Not comparable
DeepSeek-V3.1-Terminus: —, Grok 4.1: 39.5 (#133)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Expert | — | 1417 |
Multilingual Grok 4.1 leads
DeepSeek-V3.1-Terminus: 52.1 (#92), Grok 4.1: 53.4 (#68)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Non-English | 1407 | 1425 |
| LMArena Russian | 1436 | 1434 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1448 |
| LMArena German | — | 1446 |
| LMArena Japanese | — | 1397 |
| LMArena Korean | — | 1407 |
| LMArena Spanish | — | 1438 |
Instruction Following Too close to call
DeepSeek-V3.1-Terminus: 74.0 (#106), Grok 4.1: 73.8 (#111)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Instruction Following | 1404 | 1400 |
Long Context Too close to call
DeepSeek-V3.1-Terminus: 43.4 (#97), Grok 4.1: 43.2 (#100)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Longer Query | 1421 | 1416 |
Writing & Preference Grok 4.1 leads
DeepSeek-V3.1-Terminus: 61.0 (#92), Grok 4.1: 62.4 (#75)
| Benchmark | DeepSeek-V3.1-Terminus | Grok 4.1 |
|---|---|---|
| LMArena Text | 1419 | 1437 |
| LMArena Creative Writing | 1403 | 1411 |
| LMArena Multi-Turn | 1411 | 1437 |
Frequently asked questions
Is DeepSeek-V3.1-Terminus better than Grok 4.1?
DeepSeek-V3.1-Terminus is the stronger model overall, scoring 43.1 to 41.5 on the Noometry Index.
Is DeepSeek-V3.1-Terminus or Grok 4.1 better for coding?
DeepSeek-V3.1-Terminus scores higher on coding benchmarks: 42.0 versus 33.7 in the Noometry coding category.
How many benchmarks do DeepSeek-V3.1-Terminus and Grok 4.1 share?
10 benchmarks have published results for both models. DeepSeek-V3.1-Terminus has 16 scored results on Noometry and Grok 4.1 has 19.