Model comparison
DeepSeek V4 Pro vs GPT-6.1 Sol
DeepSeek V4 Pro has enough public results to be ranked (#28); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
DeepSeekSummary
- DeepSeek V4 Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 1M.
- DeepSeek V4 Pro has downloadable open weights; the other is API-only.
Side by side
| DeepSeek V4 Pro | GPT-6.1 Sol | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 54.2 | 42.1 |
| Released | 2026-04-24 | 2026-09-29 |
| Weights | Open | Proprietary |
| Context window | 1M | 1.05M |
| Max output | 393K | 128K |
| Input $ / M tokens | $0.43 | $2 |
| Output $ / M tokens | $0.87 | $10 |
| Results tracked | 48 | 2 |
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Category by category
Coding Too close to call
DeepSeek V4 Pro: 52.2 (#31), GPT-6.1 Sol: 51.4
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| SWE-bench Verified | 77.6% | — |
| DeepSWE | — | 75.2% |
| FrontierCode | 28.6% | — |
| LMArena WebDev | 1582 | — |
| SciCode | 51% | — |
| WeirdML | 66.2% | — |
| LMArena Coding | 1470 | — |
| ALE-Bench | 1,403 | — |
Agentic & Tool Use GPT-6.1 Sol leads
DeepSeek V4 Pro: 32.7 (#54), GPT-6.1 Sol: 34.3
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| APEX-Agents | 47.3% | — |
| GDP.pdf | — | 32% |
| Vending-Bench 2 | 3,285 | — |
Reasoning Not comparable
DeepSeek V4 Pro: 56.4 (#22), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| ARC-AGI-2 | 61.3% | — |
| Kagi LLM Benchmark | 53.5% | — |
| NYT Connections (extended) | 91.3% | — |
| ARC-AGI-1 | 90.5% | — |
| CritPt | 18% | — |
| Chess Puzzles | 47% | — |
| LMArena Hard Prompts | 1461 | — |
| Mystery Game Puzzles | 43% | — |
| DTBench | 93.9% | — |
| LMCA | 45.5% | — |
| Surface Evolver Bench | 40% | — |
| Epoch Capabilities Index | 155.39 | — |
| ForecastBench | 56.1 | — |
Math Not comparable
DeepSeek V4 Pro: 64.6 (#24), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| FrontierMath (Tiers 1-3) | 64.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.6% | — |
| OTIS Mock AIME 2024-2025 | 98.6% | — |
| ProofBench | 50% | — |
| LMArena Math | 1455 | — |
Knowledge Not comparable
DeepSeek V4 Pro: 59.5 (#28), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| GPQA Diamond | 91.7% | — |
| SimpleQA Verified | 52.9% | — |
| Vectara Hallucination Rate | 8.6% | — |
| LMArena Expert | 1463 | — |
Multilingual Not comparable
DeepSeek V4 Pro: 54.5 (#44), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1438 | — |
| LMArena Chinese | 1486 | — |
| LMArena French | 1473 | — |
| LMArena German | 1458 | — |
| LMArena Japanese | 1448 | — |
| LMArena Korean | 1452 | — |
| LMArena Russian | 1452 | — |
| LMArena Spanish | 1457 | — |
Instruction Following Not comparable
DeepSeek V4 Pro: 76.3 (#44), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1448 | — |
Long Context Not comparable
DeepSeek V4 Pro: 45.0 (#49), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| CL-bench Life | 13.5% | — |
| LMArena Longer Query | 1459 | — |
Writing & Preference Not comparable
DeepSeek V4 Pro: 65.6 (#45), GPT-6.1 Sol: —
| Benchmark | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1451 | — |
| LMArena Creative Writing | 1446 | — |
| EQ-Bench Creative Writing | 1553 | — |
| EQ-Bench 4 | 1166 | — |
| LMArena Multi-Turn | 1467 | — |
Frequently asked questions
Is DeepSeek V4 Pro better than GPT-6.1 Sol?
DeepSeek V4 Pro has enough public results to be ranked (#28); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Which is cheaper, DeepSeek V4 Pro or GPT-6.1 Sol?
DeepSeek V4 Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; GPT-6.1 Sol lists at $2 and $10.
Is DeepSeek V4 Pro or GPT-6.1 Sol better for coding?
They score almost the same on coding (52.2 vs 51.4); test both on your own repository before choosing.
Which has the bigger context window?
GPT-6.1 Sol does, with 1.05M tokens against 1M.
How many benchmarks do DeepSeek V4 Pro and GPT-6.1 Sol share?
0 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and GPT-6.1 Sol has 2.