# 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.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-deepseek-v3-1-terminus
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- 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.

## Snapshot

| | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Noometry Index | 43.2 | 42.6 |
| Rank | 84 | 96 |
| Context | — | 164K |
| Input $/M | — | $0.30 |
| Output $/M | — | $1 |
| Weights | Proprietary | Open |

## Coding

- 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: 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

- 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

- 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

- Chatgpt 4o Latest 20250326: 38.9 (#54)
- DeepSeek-V3.1-Terminus: —

| Benchmark | Chatgpt 4o Latest 20250326 | DeepSeek-V3.1-Terminus |
|---|---|---|
| LMArena Vision | 1243 | — |

## Multilingual

- 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

- 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

- 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: 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 | — |

## FAQ

### 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.