Model comparison
Chatgpt 4o Latest 20250326 vs DeepSeek-V3.1-Terminus
Chatgpt 4o Latest 20250326 and DeepSeek-V3.1-Terminus score almost the same on the Noometry Index (43.2 vs 42.6), so choose on price, context window or the category you care about most.
Last verified . 11 shared benchmarks.
DeepSeekSummary
- They share 11 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 4 categories and DeepSeek-V3.1-Terminus in 3 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Chatgpt 4o Latest 20250326 leads 32.8 to 25.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 75% for Chatgpt 4o Latest 20250326 and 57.4% for DeepSeek-V3.1-Terminus.
- DeepSeek-V3.1-Terminus has downloadable open weights; the other is API-only.
Side by side
| Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus | |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Noometry Index | 43.2 | 42.6 |
| Released | — | 2025-09-22 |
| Weights | Proprietary | Open |
| Context window | — | 164K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $1 |
| Results tracked | 21 | 16 |
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Category by category
Coding Too close to call
Chatgpt 4o Latest 20250326: 41.0 (#122), DeepSeek-V3.1-Terminus: 41.5 (#114)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Coding | 1413 | 1426 |
| SciCode | — | 40.6% |
| ALE-Bench | — | 745.17 |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 32.8 (#64), DeepSeek-V3.1-Terminus: 25.7 (#126)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| Kagi LLM Benchmark | 75% | 57.4% |
| LMArena Hard Prompts | 1424 | 1427 |
| CritPt | — | 1.7% |
| DTBench | — | 81.3% |
| LMCA | — | 28.6% |
Math Too close to call
Chatgpt 4o Latest 20250326: 35.8 (#134), DeepSeek-V3.1-Terminus: 35.7 (#138)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Math | 1407 | 1402 |
Knowledge Not comparable
Chatgpt 4o Latest 20250326: 38.7 (#131), DeepSeek-V3.1-Terminus: —
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| Confabulations | 16.6% | — |
| LMArena Expert | 1400 | — |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 38.9 (#54), DeepSeek-V3.1-Terminus: —
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Too close to call
Chatgpt 4o Latest 20250326: 53.1 (#72), DeepSeek-V3.1-Terminus: 52.3 (#87)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Non-English | 1419 | 1407 |
| LMArena Russian | 1429 | 1434 |
| LMArena Chinese | 1456 | — |
| LMArena French | 1447 | — |
| LMArena German | 1424 | — |
| LMArena Japanese | 1406 | — |
| LMArena Korean | 1397 | — |
| LMArena Spanish | 1435 | — |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.2 (#102), DeepSeek-V3.1-Terminus: 74.4 (#96)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Instruction Following | 1403 | 1406 |
Long Context Too close to call
Chatgpt 4o Latest 20250326: 43.1 (#104), DeepSeek-V3.1-Terminus: 43.5 (#88)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Longer Query | 1413 | 1426 |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.8 (#68), DeepSeek-V3.1-Terminus: 61.3 (#87)
| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Text | 1429 | 1420 |
| LMArena Creative Writing | 1406 | 1404 |
| LMArena Multi-Turn | 1454 | 1411 |
| EQ-Bench Creative Writing | 1501 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than DeepSeek-V3.1-Terminus?
Chatgpt 4o Latest 20250326 and DeepSeek-V3.1-Terminus score almost the same on the Noometry Index (43.2 vs 42.6), so choose on price, context window or the category you care about most.
Is Chatgpt 4o Latest 20250326 or DeepSeek-V3.1-Terminus better for coding?
They score almost the same on coding (41.0 vs 41.5); test both on your own repository before choosing.
How many benchmarks do Chatgpt 4o Latest 20250326 and DeepSeek-V3.1-Terminus share?
11 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and DeepSeek-V3.1-Terminus has 16.