MODEL REFERENCE / RUNWAY

Runway Gen-4.5
verified model reference.

Runway API text-to-video and image-to-video model for cinematic camera motion, prompt-controlled shots and production video sequences.

Not publishedcontext not published
Not publishedmax output
2026-10-12last verified

PRIMARY-SOURCE VERIFIED

Runway Gen-4.5 at a glance.

Runway does not publish a token context window for this service. Input modalities: text + image. Output: video. Pricing status: Official paid API.

MODEL IDgen4.5
CONTEXT WINDOWNot published
MAX OUTPUTNot published
KNOWLEDGE CUTOFFNot published
STANDARD RATE$7.20per generated minute (equivalent to $0.12/second; 12 credits/second)
OUTPUT RATE—official-paid

CAPABILITY CONTRACT

Published model behavior.

REASONING

Not published

Only provider-documented reasoning controls are shown; missing controls remain unpublished rather than inferred.

INPUT

text + image

Input modalities come from the cited official model documentation.

OUTPUT

video

Output modality and output-limit claims remain separate so an undocumented token cap is not guessed.

PRICING STATUS

Official paid API.

$7.20 per generated minute (equivalent to $0.12/second; 12 credits/second).

SXF preserves the provider-published native billing basis. Only calculator-eligible generative token models enter token-cost arithmetic; specialist units and input-only embeddings remain visible without forced conversion.

CAVEATS

What the source record does not assume.

01

Official Runway Dev API model ID is gen4.5, usable for both text-to-video and image-to-video requests.

02

Runway developer price: 12 credits per generated second and $0.01 per purchased API credit, equivalent to $0.12 per second or $7.20 per minute before sales tax. The catalog displays the one-minute equivalent, NOT a charge for a fixed video.

03

Runway creative app subscriptions and Explore Mode are not the same as Developer API billing. Professional/HDR formats add surcharges (e.g. +5 or +20 credits/second).

04

Official creator guide documents 2–10 second clips for standard text/image-to-video modes. LLM context-window and token max-output fields do not apply.

EXPLORE

Keep the model in context.

OFFICIAL SOURCES

Verification links.

WHAT CHANGED

Runway Gen-4.5: what changed.

No post-baseline factual changes recorded for Runway Gen-4.5 since 2026-10-12.

VERIFIED BASELINE2026-10-12Current facts remain aligned with the SXF ledger.

VERIFIED CHANGE HISTORY

Runway Gen-4.5 verified history.

Open ledger JSON ↗
BASELINE

Runway Gen-4.5

Baseline verified: context not published · Not published max output · $7.20 per generated minute (equivalent to $0.12/second; 12 credits/second)

Official evidence ↗

Append-only SXF ledger · 1 verified event · chain head 77b0ad167e15…

COMPARE RUNWAY GEN-4.5

Put this model in context.

Open Compare Engine ↗