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Head-to-head comparison

LFM2.5 VL 3B vs Sonar Reasoning Pro

LFM2.5 VL 3B (LiquidAI) and Sonar Reasoning Pro (Perplexity) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 17 August 2026

As of 17 August 2026, Sonar Reasoning Pro holds the stronger ModelCap Index position (#169 vs #172).

Which should you choose?

Choose LFM2.5 VL 3B if…

  • you want the more recently listed model — LFM2.5 VL 3B was listed 11 August 2026, Sonar Reasoning Pro 7 March 2025.

Choose Sonar Reasoning Pro if…

  • you want the stronger overall ModelCap Index position — #169 against #172 (22.3 vs 21.3 points).
  • you want provider choice — 1 listed API providers against 0.

LFM2.5 VL 3B vs Sonar Reasoning Pro: specs, pricing and context

Specification comparison of LFM2.5 VL 3B and Sonar Reasoning Pro
FieldLFM2.5 VL 3BLiquidAISonar Reasoning ProPerplexity
ModelCap Index position#172#169
Index score21.322.3
EvidenceInheritedMeasured
Input price / 1M tokensUnlisted$2.00
Output price / 1M tokensUnlisted$8.00
Context window— tokens128K tokens
Max output tokens——
API providers listed01
Weight accessRestricted licenseAPI only
Input modalitiesText, ImageText, Image
First listed11 August 20267 March 2025
PublisherLiquidAIPerplexity

Evidence: finetune · finetune · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: LFM2.5 VL 3B vs Sonar Reasoning Pro

Public benchmark boards where LFM2.5 VL 3B or Sonar Reasoning Pro has a published result
BoardLFM2.5 VL 3BSonar Reasoning ProLeads
Artificial Analysis Intelligence IndexArtificial Analysis—18.0intelligence-indexOnly one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

LFM2.5 VL 3B vs Sonar Reasoning Pro: common questions

Is LFM2.5 VL 3B better than Sonar Reasoning Pro?

Sonar Reasoning Pro ranks higher on the ModelCap Index as of 17 August 2026: #169 against #172. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is LFM2.5 VL 3B cheaper than Sonar Reasoning Pro?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, LFM2.5 VL 3B or Sonar Reasoning Pro?

Both publish a —-token context window.

Which is better for coding, LFM2.5 VL 3B or Sonar Reasoning Pro?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are LFM2.5 VL 3B and Sonar Reasoning Pro open-weight models?

LFM2.5 VL 3B: Restricted license. Sonar Reasoning Pro: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run LFM2.5 VL 3B and Sonar Reasoning Pro?

ModelCap currently lists 0 API providers for LFM2.5 VL 3B and 1 for Sonar Reasoning Pro, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this LFM2.5 VL 3B vs Sonar Reasoning Pro comparison?

Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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