Veo 3.1 Fast vs Gen-4.5: side-by-side summary

Veo 3.1 Fast and Gen-4.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Veo 3.1 Fast, from Google, is priced from $0.10/second on OpenRouter.

Gen-4.5, from Runway, is priced at $0.12/second on OpenRouter.

Context window

• Veo 3.1 Fast: Not published
• Gen-4.5: Not published

Price

• Veo 3.1 Fast: from $0.10/second
• Gen-4.5: $0.12/second

Provided by

• Veo 3.1 Fast: Google
• Gen-4.5: Runway

• Veo 3.1 Fast model details, providers and pricing
• Gen-4.5 model details, providers and pricing