Compare FLUX.2 Klein 4B from black-forest-labs and Riverflow V2 Pro from Sourceful on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
FLUX.2 Klein 4B and Riverflow V2 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
FLUX.2 Klein 4B, from black-forest-labs, is priced at $0.014/megapixel on OpenRouter.
Riverflow V2 Pro, from Sourceful, is priced from $0.15/image on OpenRouter.
| Attribute | FLUX.2 Klein 4B | Riverflow V2 Pro |
|---|---|---|
| Input price | Not applicable | Not applicable |
| Output price | Not applicable | Not applicable |
| Context window | Not applicable | Not applicable |
| Intelligence Index | Not available | Not available |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | Not available | Not available |
| Throughput (p50) | Not available | Not available |