GPT-4.1 vs Riverflow V2 Fast
Compare GPT-4.1 by OpenAI against Riverflow V2 Fast by Sourceful, context windows of 1.0M vs 8K, tested across 2 shared challenges. Updated May 2026.
Which is better, GPT-4.1 or Riverflow V2 Fast?
GPT-4.1 and Riverflow V2 Fast are both competitive models. Context windows: 1048K vs 8K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 and Riverflow V2 Fast
GPT-4.1 is made by openai while Riverflow V2 Fast is from sourceful. GPT-4.1 has a 1048K token context window compared to Riverflow V2 Fast's 8K.
API pricing
Per 1M tokens
GPT-4.1
Input
$2.00
Output
$8.00
Riverflow V2 Fast
Input
—
Output
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Our Verdict
GPT-4.1
Riverflow V2 FastRunner-up
No community votes yet. On paper, GPT-4.1 has the edge — bigger model tier, bigger context window, major provider backing.
Too close to call
FAQ
