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  1. Home
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  3. Compare

Cogito v2.1 671B vs Riverflow V2 Fast Preview

Compare Cogito v2.1 671B from deepcogito and Riverflow V2 Fast Preview 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.

Favicon for deepcogito
Cogito v2.1 671B
Favicon for sourceful
Riverflow V2 Fast Preview
Favicon for deepcogito
Cogito v2.1 671B
Favicon for sourceful
Riverflow V2 Fast Preview

Overview

Cogito v2.1 671B
Author
deepcogito
Riverflow V2 Fast Preview
Author
Sourceful
Cogito v2.1 671B
Context length
128Ktokens
Riverflow V2 Fast Preview
Context length
—
Cogito v2.1 671B
Reasoning
Riverflow V2 Fast Preview
Reasoning
Cogito v2.1 671B
Input modalities
Riverflow V2 Fast Preview
Input modalities
Cogito v2.1 671B
Output modalities
Riverflow V2 Fast Preview
Output modalities

Cogito v2.1 671B vs Riverflow V2 Fast Preview: side-by-side summary

Cogito v2.1 671B and Riverflow V2 Fast Preview are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Cogito v2.1 671B, from deepcogito, has a 128,000-token context window and is priced by the provider serving it on OpenRouter.

Riverflow V2 Fast Preview, from Sourceful, is priced by the provider serving it on OpenRouter.

Context window
  • Cogito v2.1 671B: 128,000 tokens
  • Riverflow V2 Fast Preview: Not applicable
Price
  • Cogito v2.1 671B: Pricing varies by provider
  • Riverflow V2 Fast Preview: Pricing varies by provider
Provided by
  • Cogito v2.1 671B: deepcogito
  • Riverflow V2 Fast Preview: Sourceful
model details, providers and pricing
model details, providers and pricing
Cogito v2.1 671B
Riverflow V2 Fast Preview

Cogito v2.1 671B vs Riverflow V2 Fast Preview at a glance

Cogito v2.1 671B vs Riverflow V2 Fast Preview comparison
Cogito v2.1 671BRiverflow V2 Fast Preview
Input pricePricing varies by providerPricing varies by provider
Output pricePricing varies by providerPricing varies by provider
Context window128,000 tokensNot applicable
Intelligence IndexNot availableNot available
Coding IndexNot availableNot available
Agentic IndexNot availableNot available
Latency (p50)Not availableNot available
Throughput (p50)Not availableNot available

Sep 5, 2026

Attribute
Benchmark data updated