---
id: "sourceful/riverflow-v2.5-fast"
also: ["sourceful/riverflow-v2.5-fast-20260605"]
card_usd_per_m: "0.0 in, 0.0 out, at sourceful"
context: 32768
max_output: 29491
input: ["text", "image"]
output: ["image"]
released: "2026-06-04"
reasoning: ["high", "medium", "low"]
api: ["/api/v1/images"]
params: ["include_reasoning", "reasoning", "reasoning_effort"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 1
---
# Sourceful: Riverflow V2.5 Fast

Riverflow V2.5 Fast is the speed-optimized variant of Sourceful's Riverflow 2.5 lineup, best for production deployments and latency-critical workflows. The Riverflow 2.5 series is a unified text-to-image and image-to-image family...