# DeepSeek-V3.1-Terminus vs Qwen3.6 Flash

> DeepSeek-V3.1-Terminus is the stronger model overall, scoring 43.1 to 38.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v3-1-terminus-vs-qwen3-6-flash
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. DeepSeek-V3.1-Terminus scores higher in 0 categories and Qwen3.6 Flash in 2 categories; one gap is clear of the uncertainty.
- Qwen3.6 Flash is cheaper at $0.19 / $1.13 per million input/output tokens, against $0.27 / $1 for DeepSeek-V3.1-Terminus.
- Qwen3.6 Flash accepts more context: 1M tokens versus 164K.
- DeepSeek-V3.1-Terminus has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| Provider | DeepSeek | Alibaba (Qwen) |
| Noometry Index | 43.1 | 38.8 |
| Rank | 97 | 182 |
| Context | 164K | 1M |
| Input $/M | $0.27 | $0.19 |
| Output $/M | $1 | $1.13 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek-V3.1-Terminus: 42.0 (#113)
- Qwen3.6 Flash: —

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| ALE-Bench | 745.17 | 326.4 |
| SciCode | 40.6% | — |
| LMArena Coding | 1426 | — |

## Reasoning

- DeepSeek-V3.1-Terminus: 26.4 (#133)
- Qwen3.6 Flash: 29.0 (#96)

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| DTBench | 81.3% | 77.1% |
| LMCA | 28.6% | 31% |
| SimpleBench | — | 35.2% |
| Kagi LLM Benchmark | 57.4% | — |
| CritPt | 1.7% | — |
| Chess Puzzles | — | 20% |
| LMArena Hard Prompts | 1426 | — |
| Mystery Game Puzzles | — | 18% |
| Epoch Capabilities Index | — | 143.26 |

## Math

- DeepSeek-V3.1-Terminus: 38.5 (#137)
- Qwen3.6 Flash: 39.0 (#117)

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 22.5% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| LMArena Math | 1402 | — |
| FrontierMath (Feb 2025 set) | — | 10.3% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- DeepSeek-V3.1-Terminus: —
- Qwen3.6 Flash: 42.1 (#100)

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| GPQA Diamond | — | 83.3% |
| SimpleQA Verified | — | 15.9% |

## Multilingual

- DeepSeek-V3.1-Terminus: 52.1 (#92)
- Qwen3.6 Flash: —

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| LMArena Non-English | 1407 | — |
| LMArena Russian | 1436 | — |

## Instruction Following

- DeepSeek-V3.1-Terminus: 74.0 (#106)
- Qwen3.6 Flash: —

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| LMArena Instruction Following | 1404 | — |

## Long Context

- DeepSeek-V3.1-Terminus: 43.4 (#97)
- Qwen3.6 Flash: —

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| LMArena Longer Query | 1421 | — |

## Writing & Preference

- DeepSeek-V3.1-Terminus: 61.0 (#92)
- Qwen3.6 Flash: —

| Benchmark | DeepSeek-V3.1-Terminus | Qwen3.6 Flash |
|---|---|---|
| LMArena Text | 1419 | — |
| LMArena Creative Writing | 1403 | — |
| LMArena Multi-Turn | 1411 | — |

## FAQ

### Is DeepSeek-V3.1-Terminus better than Qwen3.6 Flash?

DeepSeek-V3.1-Terminus is the stronger model overall, scoring 43.1 to 38.8 on the Noometry Index.

### Which is cheaper, DeepSeek-V3.1-Terminus or Qwen3.6 Flash?

Qwen3.6 Flash is cheaper. It lists at $0.19 per million input tokens and $1.13 per million output tokens; DeepSeek-V3.1-Terminus lists at $0.27 and $1.

### Which has the bigger context window?

Qwen3.6 Flash does, with 1M tokens against 164K.

### How many benchmarks do DeepSeek-V3.1-Terminus and Qwen3.6 Flash share?

3 benchmarks have published results for both models. DeepSeek-V3.1-Terminus has 16 scored results on Noometry and Qwen3.6 Flash has 13.