# Command R+ vs Sonar

> Sonar is the stronger model overall, scoring 38.5 to 32.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/command-r-plus-vs-sonar
- Last updated: 2026-10-10
- Shared benchmarks: 7

## Summary

- They share 7 benchmarks with published results for both. Command R+ scores higher in 0 categories and Sonar in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Sonar leads 21.1 to 9.2.
- The biggest single-benchmark swing is LiveBench Reasoning: 24.8% for Command R+ and 46.3% for Sonar.
- Sonar is cheaper at $1 / $1 per million input/output tokens, against $2.50 / $10 for Command R+.
- Command R+ has downloadable open weights; the other is API-only.

## Snapshot

| | Command R+ | Sonar |
|---|---|---|
| Provider | Cohere | Perplexity |
| Noometry Index | 32.4 | 38.5 |
| Rank | 257 | 187 |
| Context | 128K | 128K |
| Input $/M | $2.50 | $1 |
| Output $/M | $10 | $1 |
| Weights | Open | Proprietary |

## Coding

- Command R+: 29.1 (#309)
- Sonar: 35.7 (#221)

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LiveBench Coding | 19.1% | 35.1% |
| BigCodeBench Instruct | 33.8% | — |
| LMArena Coding | 1187 | — |
| BigCodeBench Complete | 41.9% | — |
| HumanEval+ | 56.7% | — |
| MBPP+ | 63.5% | — |

## Reasoning

- Command R+: 9.2 (#344)
- Sonar: 21.1 (#227)

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LiveBench Reasoning | 24.8% | 46.3% |
| LiveBench Data Analysis | 38.1% | 37.9% |
| LiveBench | 31.8% | 46.9% |
| SimpleBench | 17.4% | — |
| LMArena Hard Prompts | 1186 | — |
| DTBench | 54.9% | — |
| LMCA | 5% | — |
| Epoch Capabilities Index | 119.34 | — |

## Math

- Command R+: 28.9 (#242)
- Sonar: 33.7 (#200)

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LiveBench Math | 21.3% | 41.6% |
| LMArena Math | 1188 | — |

## Knowledge

- Command R+: 36.4 (#169)
- Sonar: —

| Benchmark | Command R+ | Sonar |
|---|---|---|
| Vectara Hallucination Rate | 6.9% | — |
| LMArena Expert | 1174 | — |
| MMLU | 69.4% | — |

## Multilingual

- Command R+: 38.6 (#227)
- Sonar: —

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LMArena Non-English | 1216 | — |
| LMArena Chinese | 1226 | — |
| LMArena French | 1209 | — |
| LMArena German | 1216 | — |
| LMArena Japanese | 1166 | — |
| LMArena Korean | 1138 | — |
| LMArena Russian | 1227 | — |
| LMArena Spanish | 1189 | — |

## Instruction Following

- Command R+: 60.0 (#254)
- Sonar: 71.4 (#150)

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LiveBench Instruction Following | 57.6% | 76.2% |
| LMArena Instruction Following | 1197 | — |

## Long Context

- Command R+: 37.3 (#219)
- Sonar: —

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LMArena Longer Query | 1230 | — |

## Writing & Preference

- Command R+: 43.5 (#228)
- Sonar: 52.6 (#167)

| Benchmark | Command R+ | Sonar |
|---|---|---|
| LiveBench Language | 29.7% | 44.1% |
| LMArena Text | 1229 | — |
| LMArena Creative Writing | 1235 | — |
| LMArena Multi-Turn | 1213 | — |

## FAQ

### Is Command R+ better than Sonar?

Sonar is the stronger model overall, scoring 38.5 to 32.4 on the Noometry Index.

### Which is cheaper, Command R+ or Sonar?

Sonar is cheaper. It lists at $1 per million input tokens and $1 per million output tokens; Command R+ lists at $2.50 and $10.

### Is Command R+ or Sonar better for coding?

Sonar scores higher on coding benchmarks: 35.7 versus 29.1 in the Noometry coding category.

### Which has the bigger context window?

Both accept 128K tokens.

### How many benchmarks do Command R+ and Sonar share?

7 benchmarks have published results for both models. Command R+ has 34 scored results on Noometry and Sonar has 7.