# Grok Build 0.1 vs Sonar

> Sonar is the stronger model overall, scoring 38.5 to 36.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-build-0-1-vs-sonar
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Grok Build 0.1 leads 32.2 to 21.1.
- Sonar is cheaper at $1 / $1 per million input/output tokens, against $1 / $2 for Grok Build 0.1.
- Grok Build 0.1 accepts more context: 256K tokens versus 128K.

## Snapshot

| | Grok Build 0.1 | Sonar |
|---|---|---|
| Provider | xAI | Perplexity |
| Noometry Index | 36.4 | 38.5 |
| Rank | 216 | 187 |
| Context | 256K | 128K |
| Input $/M | $1 | $1 |
| Output $/M | $2 | $1 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok Build 0.1: 43.1 (#91)
- Sonar: 35.7 (#221)

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| SciCode | 50.2% | — |
| LiveBench Coding | — | 35.1% |

## Agentic & Tool Use

- Grok Build 0.1: 22.7 (#129)
- Sonar: —

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| GBAEval | 2.4% | — |

## Reasoning

- Grok Build 0.1: 32.2 (#77)
- Sonar: 21.1 (#227)

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| CritPt | 9.1% | — |
| LiveBench Reasoning | — | 46.3% |
| LiveBench Data Analysis | — | 37.9% |
| LiveBench | — | 46.9% |

## Math

- Grok Build 0.1: —
- Sonar: 33.7 (#200)

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Math | — | 41.6% |

## Instruction Following

- Grok Build 0.1: —
- Sonar: 71.4 (#150)

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |

## Writing & Preference

- Grok Build 0.1: —
- Sonar: 52.6 (#167)

| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Language | — | 44.1% |

## FAQ

### Is Grok Build 0.1 better than Sonar?

Sonar is the stronger model overall, scoring 38.5 to 36.4 on the Noometry Index.

### Which is cheaper, Grok Build 0.1 or Sonar?

Sonar is cheaper. It lists at $1 per million input tokens and $1 per million output tokens; Grok Build 0.1 lists at $1 and $2.

### Is Grok Build 0.1 or Sonar better for coding?

Grok Build 0.1 scores higher on coding benchmarks: 43.1 versus 35.7 in the Noometry coding category.

### Which has the bigger context window?

Grok Build 0.1 does, with 256K tokens against 128K.

### How many benchmarks do Grok Build 0.1 and Sonar share?

0 benchmarks have published results for both models. Grok Build 0.1 has 3 scored results on Noometry and Sonar has 7.