Model comparison
Grok Build 0.1 vs Sonar
Sonar is the stronger model overall, scoring 38.5 to 36.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
PerplexitySummary
- 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.
Side by side
| Grok Build 0.1 | Sonar | |
|---|---|---|
| Provider | xAI | Perplexity |
| Noometry Index | 36.4 | 38.5 |
| Released | 2026-04-16 | 2024-01-01 |
| Weights | Proprietary | Proprietary |
| Context window | 256K | 128K |
| Max output | 256K | 4K |
| Input $ / M tokens | $1 | $1 |
| Output $ / M tokens | $2 | $1 |
| Results tracked | 3 | 7 |
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Category by category
Coding Grok Build 0.1 leads
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 Not comparable
Grok Build 0.1: 22.7 (#129), Sonar: —
| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| GBAEval | 2.4% | — |
Reasoning Grok Build 0.1 leads
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 Not comparable
Grok Build 0.1: —, Sonar: 33.7 (#200)
| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Math | — | 41.6% |
Instruction Following Not comparable
Grok Build 0.1: —, Sonar: 71.4 (#150)
| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
Writing & Preference Not comparable
Grok Build 0.1: —, Sonar: 52.6 (#167)
| Benchmark | Grok Build 0.1 | Sonar |
|---|---|---|
| LiveBench Language | — | 44.1% |
Frequently asked questions
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.