gen4-turbo

gen4-turbo is a advanced-tier language model from Runway. gen4-turbo is a proprietary model available exclusively through Runway's API. The Gen-4 family is Runway's model series for this capability tier.

gen4-turbo is priced at $0.05 per second. This is a video model billed per second rather than per token — token input/output pricing does not apply.

Its 0-token context window is standard for this tier — adequate for most chat and completion tasks, but may require chunking for long-document workloads. Median latency (P50 time-to-first-token) is approximately 60000ms — better suited to batch or async workloads where latency is less critical.

gen4-turbo is best suited to video-generation, speed, cost. Supported capabilities include vision inputs (images alongside text). Vision support enables document analysis, screenshot understanding, diagram interpretation, and visual question answering — images are converted to tokens at the standard input rate based on resolution. When evaluating this model for a specific workload, the most important factors are: context window (does your input fit?), output price (how long are your generations?), and latency (is this interactive or batch?). The pricing table above shows how gen4-turbo compares to similar models across these dimensions.

gen4-turbo sits in the advanced tier — strong general-purpose models balancing capability and cost, suitable for most production applications. Unlike open-weights alternatives, gen4-turbo is only available via Runway's API — there is no self-hosted option, which simplifies deployment but creates vendor dependency. When comparing gen4-turbo to alternatives, use the similar models section on this page to find models at comparable price points with different capability tradeoffs. The intelligence score (0/100) reflects aggregate benchmark performance — a useful proxy for general capability, though real-world performance varies significantly by task type. Always test with your specific prompts and use case before committing to a model for production.