# Qwen3 8B vs Sonar

> Sonar is the stronger model overall, scoring 38.5 to 33.7 on the Noometry Index. Qwen3 8B costs 3.2× less per token, which makes it the better buy when Sonar's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/qwen3-8b-vs-sonar
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Sonar leads 21.1 to 16.6.
- Qwen3 8B is cheaper at $0.18 / $0.70 per million input/output tokens, against $1 / $1 for Sonar.
- Qwen3 8B accepts more context: 131K tokens versus 128K.
- Qwen3 8B has downloadable open weights; the other is API-only.

## Snapshot

| | Qwen3 8B | Sonar |
|---|---|---|
| Provider | Alibaba (Qwen) | Perplexity |
| Noometry Index | 33.7 | 38.5 |
| Rank | 238 | 187 |
| Context | 131K | 128K |
| Input $/M | $0.18 | $1 |
| Output $/M | $0.70 | $1 |
| Weights | Open | Proprietary |

## Coding

- Qwen3 8B: 34.0 (#248)
- Sonar: 35.7 (#221)

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| SciCode | 22.6% | — |
| LiveBench Coding | — | 35.1% |

## Agentic & Tool Use

- Qwen3 8B: 30.2 (#78)
- Sonar: —

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| Berkeley Function Calling Leaderboard | 42.6% | — |

## Reasoning

- Qwen3 8B: 16.6 (#303)
- Sonar: 21.1 (#227)

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| CritPt | 0% | — |
| Chess Puzzles | 5% | — |
| LiveBench Reasoning | — | 46.3% |
| DTBench | 59.7% | — |
| LiveBench Data Analysis | — | 37.9% |
| LMCA | 8.8% | — |
| Epoch Capabilities Index | 136.17 | — |
| LiveBench | — | 46.9% |

## Math

- Qwen3 8B: 34.9 (#191)
- Sonar: 33.7 (#200)

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 56.1% | — |
| LiveBench Math | — | 41.6% |

## Knowledge

- Qwen3 8B: 36.1 (#173)
- Sonar: —

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| GPQA Diamond | 56.8% | — |
| Vectara Hallucination Rate | 4.8% | — |

## Instruction Following

- Qwen3 8B: —
- Sonar: 71.4 (#150)

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |

## Long Context

- Qwen3 8B: 37.9 (#210)
- Sonar: —

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| Fiction.LiveBench | 62.1% | — |

## Writing & Preference

- Qwen3 8B: —
- Sonar: 52.6 (#167)

| Benchmark | Qwen3 8B | Sonar |
|---|---|---|
| LiveBench Language | — | 44.1% |

## FAQ

### Is Qwen3 8B better than Sonar?

Sonar is the stronger model overall, scoring 38.5 to 33.7 on the Noometry Index. Qwen3 8B costs 3.2× less per token, which makes it the better buy when Sonar's lead doesn't matter for your workload.

### Which is cheaper, Qwen3 8B or Sonar?

Qwen3 8B is cheaper. It lists at $0.18 per million input tokens and $0.70 per million output tokens; Sonar lists at $1 and $1.

### Is Qwen3 8B or Sonar better for coding?

Sonar scores higher on coding benchmarks: 35.7 versus 34.0 in the Noometry coding category.

### Which has the bigger context window?

Qwen3 8B does, with 131K tokens against 128K.

### How many benchmarks do Qwen3 8B and Sonar share?

0 benchmarks have published results for both models. Qwen3 8B has 11 scored results on Noometry and Sonar has 7.