Head-to-head comparison
Sonar Pro Search (Perplexity) and Reka Edge (Reka) 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 3 September 2026
As of 3 September 2026, Reka Edge holds the stronger ModelCap Index position (#152 vs #225); Reka Edge is 150× cheaper per output token ($0.10/1M vs $15.00/1M); and Sonar Pro Search offers the longer context window (200K vs 16K tokens).
Evidence: publisher corpus prior · leave-one-anchor-out calibrated · global corpus prior · leave-one-anchor-out calibrated. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.
Neither model has a published result on a public benchmark board ModelCap tracks yet.
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.
Reka Edge ranks higher on the ModelCap Index as of 3 September 2026: #152 against #225. 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.
Reka Edge is cheaper on output tokens: $0.10/1M against $15.00/1M. Input tokens are $3.00/1M for Sonar Pro Search and $0.10/1M for Reka Edge. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.
Sonar Pro Search has the larger context window: 200K tokens against 16K.
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.
Sonar Pro Search: API only. Reka Edge: Restricted license. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.
ModelCap currently lists 1 API provider for Sonar Pro Search and 1 for Reka Edge, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.
Every figure comes from the sealed ModelCap dataset published 3 September 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.