# Qwen3.5 Plus vs Trinity Large Thinking

> Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 38.6 on the Noometry Index. Trinity Large Thinking costs 2.3× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/qwen3-5-plus-vs-trinity-large-thinking
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Qwen3.5 Plus scores higher in 4 categories and Trinity Large Thinking in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5 Plus leads 32.8 to 16.9.
- Trinity Large Thinking is cheaper at $0.25 / $0.80 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
- Qwen3.5 Plus accepts more context: 1M tokens versus 262K.
- Trinity Large Thinking has downloadable open weights; the other is API-only.

## Snapshot

| | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| Provider | Alibaba (Qwen) | Arcee AI |
| Noometry Index | 42.9 | 38.6 |
| Rank | 106 | 185 |
| Context | 1M | 262K |
| Input $/M | $0.40 | $0.25 |
| Output $/M | $2.40 | $0.80 |
| Weights | Proprietary | Open |

## Coding

- Qwen3.5 Plus: —
- Trinity Large Thinking: 34.1 (#244)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| LMArena WebDev | — | 1238 |
| SciCode | — | 36.1% |
| LMArena Coding | — | 1381 |
| ALE-Bench | 621.92 | — |

## Agentic & Tool Use

- Qwen3.5 Plus: —
- Trinity Large Thinking: —

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| Vending-Bench 2 | 0.54 | — |

## Reasoning

- Qwen3.5 Plus: 32.8 (#74)
- Trinity Large Thinking: 16.9 (#298)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| NYT Connections (extended) | — | 16.5% |
| CritPt | — | 0.9% |
| Chess Puzzles | 22% | — |
| Thematic Generalization | — | 41.6% |
| LMArena Hard Prompts | — | 1350 |
| Mystery Game Puzzles | 17% | — |
| DTBench | 80.5% | — |
| LMCA | 36.4% | — |
| Surface Evolver Bench | — | 15.6% |
| Epoch Capabilities Index | 146.78 | — |

## Math

- Qwen3.5 Plus: 49.6 (#61)
- Trinity Large Thinking: 37.6 (#149)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 86.7% | — |
| LMArena Math | — | 1366 |
| FrontierMath (Feb 2025 set) | 21% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |

## Knowledge

- Qwen3.5 Plus: 46.0 (#83)
- Trinity Large Thinking: 40.9 (#113)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| Vectara Hallucination Rate | 10.7% | 6.9% |
| GPQA Diamond | 84.8% | — |
| SimpleQA Verified | 25.4% | — |
| LMArena Expert | — | 1360 |

## Multilingual

- Qwen3.5 Plus: —
- Trinity Large Thinking: 46.2 (#160)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | — | 1325 |
| LMArena Chinese | — | 1373 |
| LMArena French | — | 1374 |
| LMArena German | — | 1356 |
| LMArena Japanese | — | 1311 |
| LMArena Korean | — | 1306 |
| LMArena Russian | — | 1337 |
| LMArena Spanish | — | 1357 |

## Instruction Following

- Qwen3.5 Plus: —
- Trinity Large Thinking: 70.5 (#162)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | — | 1334 |

## Long Context

- Qwen3.5 Plus: 43.0 (#113)
- Trinity Large Thinking: 41.3 (#144)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| CL-bench | 19.8% | — |
| CL-bench Life | 12.4% | — |
| LMArena Longer Query | — | 1355 |

## Writing & Preference

- Qwen3.5 Plus: —
- Trinity Large Thinking: 53.8 (#158)

| Benchmark | Qwen3.5 Plus | Trinity Large Thinking |
|---|---|---|
| LMArena Text | — | 1340 |
| LMArena Creative Writing | — | 1320 |
| LMArena Multi-Turn | — | 1342 |

## FAQ

### Is Qwen3.5 Plus better than Trinity Large Thinking?

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 38.6 on the Noometry Index. Trinity Large Thinking costs 2.3× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.

### Which is cheaper, Qwen3.5 Plus or Trinity Large Thinking?

Trinity Large Thinking is cheaper. It lists at $0.25 per million input tokens and $0.80 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.

### Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 262K.

### How many benchmarks do Qwen3.5 Plus and Trinity Large Thinking share?

1 benchmark has published results for both models. Qwen3.5 Plus has 15 scored results on Noometry and Trinity Large Thinking has 24.