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Mistral Medium 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

Mistral Medium specs · Sonar Pro specs
Verdict by category
  • PriceMistral Medium

    Mistral Medium is roughly 7.5× cheaper on output tokens ($2.00 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.

  • OpennessTie

    Both are closed-weight, API-only.

It's a genuine coin-flip between Mistral Medium and Sonar Pro: 1 category wins each, with the rest tied. Mistral Medium is roughly 7.5× cheaper on output tokens ($2.00 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. Both are closed-weight, API-only.

Sonar Pro is the newer of the two, released 1 months after Mistral Medium, which usually means a more recent knowledge cutoff and updated safety post-training. Mistral Medium is usually picked for customer support and chatbots 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

SpecMistral MediumSonar Pro
ProviderMistralPerplexity
ReleasedDec 2024Jan 2025
Modalitiestexttext
Context window128K tokens200K tokens
Max output,,
Input · 1M$0.40 / 1M tokens$3.00 / 1M tokens
Output · 1M$2.00 / 1M tokens$15.00 / 1M tokens
Knowledge cutoff,,
Open weightsNoNo
API availableYesYes

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$4.20 vs $31.50
  • Heavy usage, 1M in / 500k out per day$42.00 vs $315
  • RAG workload, 5M in / 200k out per day$72.00 vs $540

Light usage, 100k in / 50k out per day: $4.20 vs $31.50 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $42.00 vs $315 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $72.00 vs $540 per month, model A comes out ahead.

Price calculator

Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.

  • Mistral Medium$0.140
  • 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.

Benchmark scores not yet available. We only publish numbers we can source from official model cards or independent leaderboards, see methodology.
Pick Mistral Medium if

Mistral Medium fits when…

  • Mid-tier balance
  • EU-friendly
  • Cost-sensitive workloads, 7.5× cheaper than Sonar Pro on output tokens.
Pick Sonar Pro if

Sonar Pro fits when…

  • Multi-step web search
  • Deep research output
  • Citations
  • Long-context tasks, handles 200K tokens vs 128K for Mistral Medium.
Don't want either?

Consider Mistral Large 2

Mistral's flagship API model, strong on code and reasoning, EU-friendly hosting.

See Mistral Large 2 specsMistral Medium vs Mistral Large 2Sonar Pro vs Mistral Large 2

Frequently asked

  • Is Mistral Medium or Sonar Pro cheaper?
    Mistral Medium is cheaper at $2.00 / 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 Mistral Medium.
  • Is Mistral Medium or Sonar Pro better for coding?
    Both Mistral Medium 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?
    Neither model ships open weights, both are accessible only via their respective providers' APIs.
  • When were Mistral Medium and Sonar Pro released?
    Mistral Medium was released by Mistral on 2024-12-18. Sonar Pro was released by Perplexity on 2025-01-21.
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