Runway Gen-4.5 API Pricing: Official vs Resellers (September 2026)
Runway Gen-4.5 is a video generation model from Runway. We track 6 published prices for it from 5 providers (1 official, 3 aggregators, 1 reseller), last checked 2026-09-28.
Official prices from Runway range from $0.120/s (Standard · 720p) to $0.320/s (Hdr · 720p), depending on the configuration.
The lowest published price is $0.120/s from Runway (official; Standard · 720p). No listed price is below the official price for a matching spec.
Published prices — not yet independently tested. Figures are copied from each provider's public pricing page or pricing API on 2026-09-28. We have not run test generations yet, so a listed price says nothing about reliability or output quality. Every price links to its source.
All published prices (6)
Sorted by normalized price (US dollars per second of video). Rows without a normalized figure (clip length or unit not stated) are listed last.
| Provider | Type | Spec | Published price | $ / second | × official | Confidence | Source | Note |
|---|---|---|---|---|---|---|---|---|
| Runway | Official | Standard · 720pListed as: Gen-4.5 (gen4.5) | $0.12 / s | $0.120 | 1.00× | Pricing page | docs.dev.runwayml.com | Note12 credits/s at $0.01/credit. Text or image input (same rate). Output ratios 1280:720, 720:1280, 1104:832, 960:960, 832:1104, 1584:672; duration 2-10 s (API reference). Audio not stated. |
| OpenRouter | Aggregator | 720p · no audioListed as: Runway: Gen-4.5 | $0.12 / s | $0.120 | — | Pricing API | openrouter.ai | NoteSKU cents_per_second_output 12 from openrouter.ai; durations 2-10s |
| Replicate | Aggregator | no audioListed as: runwayml/gen-4.5 | $0.12 / s | $0.120 | — | Pricing page | replicate.com | Note5 or 10 s; resolution not stated on page. |
| Runware | Aggregator | spec not statedListed as: Runway Gen-4.5 | $0.12 / s | $0.120 | — | Pricing API | content.runware.ai | NoteSingle rate. |
| useapi.net | Reseller | BYO Runway Pro monthly ($35/mo, $0.01556/credit)Listed as: Gen-4.5 (Runway route) | $0.19 / s | $0.190 | — | Pricing page | useapi.net | Note12 credits/s. Runway Unlimited (legacy) accounts with exploreMode can generate without credits. Effective cost of the vendor consumer credits spent on your own account, as estimated on useapi.net; excludes the flat $15/mo useapi.net fee and the vendor plan commitment itself. Not a useapi.net per-call price. |
| Runway | Official | Hdr · 720pListed as: Gen-4.5 (gen4.5) + HDR output | $0.32 / s | $0.320 | 1.00× | Pricing page | docs.dev.runwayml.com | Note12 credits/s base + 20 credits/s surcharge for 10-bit/HDR outputFormat (hdr10, hlg, ProRes HDR, EXR...). ProRes/PNG-sequence SDR surcharge is +5 credits/s ($0.17/s total). |
× official = normalized price ÷ the cheapest official price for the same model and spec. ~ marks a relaxed match: tier, resolution or audio is unspecified on one side, and every compatible official spec costs the same. — = no unambiguous official price to compare.
Confidence: “Pricing page” = read on the provider’s own pricing or docs page; “Pricing API” = read from a public API response. “BYO” tiers are bring-your-own-account estimates, not per-call prices.
FAQ
- What is the official Runway Gen-4.5 API price?
- Official prices from Runway range from $0.120/s (Standard · 720p) to $0.320/s (Hdr · 720p), depending on the configuration. Official configurations: $0.120/s (Standard · 720p); $0.320/s (Hdr · 720p).
- What is the cheapest Runway Gen-4.5 API?
- The lowest published price is $0.120/s from Runway (official; Standard · 720p). No listed price is below the official price for a matching spec. Prices were checked on 2026-09-28; they are published prices, not results of our own test generations.