Command R vs Sonar Pro
A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.
Updated
Command R specs · Sonar Pro specs- PriceCommand R
Command R is roughly 10.0× cheaper on output tokens ($1.50 vs $15.00 per 1M).
- Context windowSonar Pro
Sonar Pro accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.
- BenchmarksTie
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.
- ModalitiesTie
Both handle text.
- OpennessCommand R
Command R ships open weights (CC-BY-NC 4.0); Sonar Pro is API-only.
On balance Command R edges ahead, winning 2 of 5 categories against Sonar Pro's 1. Command R is roughly 10.0× cheaper on output tokens ($1.50 vs $15.00 per 1M). Sonar Pro accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. Both target the same set of modalities (text), so the deciding factors are price, context, and raw quality. Command R ships open weights (CC-BY-NC 4.0); Sonar Pro is API-only.
Sonar Pro is the newer of the two, released 11 months after Command R, which usually means a more recent knowledge cutoff and updated safety post-training. Command R is usually picked for rag and customer support workloads, while Sonar Pro sees more deployments in research agent and rag. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.
Side-by-side specs
| Spec | Command R | Sonar Pro |
|---|---|---|
| Provider | Cohere | Perplexity |
| Released | Mar 2024 | Jan 2025 |
| Modalities | text | text |
| Context window | 128K tokens | 200K tokens |
| Max output | , | , |
| Input · 1M | $0.50 / 1M tokens | $3.00 / 1M tokens |
| Output · 1M | $1.50 / 1M tokens | $15.00 / 1M tokens |
| Knowledge cutoff | , | , |
| Open weights | Yes (CC-BY-NC 4.0) | No |
| API available | Yes | Yes |
Pricing at scale
What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.
- Light usage, 100k in / 50k out per day$3.75 vs $31.50
- Heavy usage, 1M in / 500k out per day$37.50 vs $315
- RAG workload, 5M in / 200k out per day$84.00 vs $540
Light usage, 100k in / 50k out per day: $3.75 vs $31.50 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $37.50 vs $315 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $84.00 vs $540 per month, model A comes out ahead.
Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.
- Command R$0.125
- Sonar Pro$1.05
Benchmarks compared
Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.
Command R fits when…
- Cheap RAG
- Reliable tool-use
- Cost-sensitive workloads, 10.0× cheaper than Sonar Pro on output tokens.
- Self-hosting and on-prem requirements, open weights (CC-BY-NC 4.0).
Sonar Pro fits when…
- Multi-step web search
- Deep research output
- Citations
- Long-context tasks, handles 200K tokens vs 128K for Command R.
Consider Command R+ (08-2024)
Cohere's flagship optimized for RAG and tool use in enterprise settings.
Frequently asked
Is Command R or Sonar Pro cheaper?
Command R is cheaper at $1.50 / 1M tokens per million output tokens, vs $15.00 / 1M tokens for Sonar Pro.Which has the larger context window?
Sonar Pro accepts 200K tokens vs 128K for Command R.Is Command R or Sonar Pro better for coding?
Both Command R and Sonar Pro are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.Are either of these models open source?
Command R ships open weights (CC-BY-NC 4.0). Sonar Pro is API-only.When were Command R and Sonar Pro released?
Command R was released by Cohere on 2024-03-11. Sonar Pro was released by Perplexity on 2025-01-21.
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