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Runway Image-to-Video

Create short generative video with Runway Image-to-Video on LLM.API, with resolution-aware pricing and a unified developer workflow.

Start Using API

What is Runway Image-to-Video?

Runway Image-to-Video is a generative video model available through LLM.API as `runway-i2v`. Video generation model by Muapi. Expect text, image prompts and video outputs, with pricing often tied to seconds and resolution.

Providers

LLM.API routes Runway Image-to-Video to the providers below, with discounted effective rates versus list price.

List price by provider ($ / 1M tokens)

InputOutput
muapi$0 in
$0 out

Provider list prices; the LLM.API discount applies on top.

ProviderPricingContextCapabilities
muapi30% offin —; out $0.03 per second of video——

Prices and availability from the LLMAPI catalogue, updated nightly. Last updated 21 Sept 2026.

Try this model

Test Runway Image-to-Video right here — free to start.

Runway Image-to-Video
Hi! Want to test the model?

Suggestions for your first prompt

Code snippet

Call Runway Image-to-Video through the OpenAI-compatible API — Video generation via LLM.API (see docs for media endpoints).

python
from openai import OpenAI

client = OpenAI(
    api_key="YOUR_LLMAP_KEY",
    base_url="https://api.llmapi.ai/v1",
)

resp = client.chat.completions.create(
    model="runway-i2v",
    messages=[
        {"role": "system", "content": "You are a precise product assistant."},
        {"role": "user", "content": "Give me three crisp launch checklist items."},
    ],
)
print(resp.choices[0].message.content)
{
  "model": "runway-i2v",
  "messages": [
    {"role": "system", "content": "You are a precise product assistant."},
    {"role": "user", "content": "Give me three crisp launch checklist items."}
  ]
}

5 Core Capabilities

  • Cinematic prompting

    Responds to camera, lighting, and mood language in creative briefs. Relevant for `runway-i2v` workloads on LLM.API.

  • Text-to-video generation

    Synthesizes short video clips from prompts for ads, explainers, and social. Grounded in the model's video role rather than generic chat claims.

  • Motion coherence

    Targets temporally consistent motion across frames for the requested scene. Grounded in the model's video role rather than generic chat claims.

  • Short-form content

    Fits vertical and horizontal short-form marketing formats.

  • Storyboard acceleration

    Turns written beats into moving drafts for rapid review. Reflects video generation positioning for this endpoint.

6 Most Valuable Use Cases

  • UGC-style drafts for performance marketing with Runway Image-to-Video
  • Localized motion variants of the same concept
  • Scene tests for world and environment design with Runway Image-to-Video
  • Creative exploration for campaign storyboards
  • Explainer openers before live-action shoots with Runway Image-to-Video
  • Social-first product teaser generation

Why Build on LLM.API?

One unified API. Every major model. Built-in reliability, cost control, and observability.

  • Intelligent AI Routing

    Automatically route each request to the best model across providers based on latency, cost, and quality—without changing your integration or redeploying code.

    One endpoint, every model.

  • Cost-Aware Execution

    Control spend with per-request cost estimation, smart model selection, and centralized quotas so teams can experiment fast without runaway bills or manual tracking.

    More performance, less spend.

  • Resilient Fallback Flows

    Define automatic, provider-agnostic fallbacks to keep your app up during outages, rate limits, or timeouts—no brittle failover logic scattered through your codebase.

    Never go dark on users.

  • Deep LLM Observability

    Trace every call across providers with logs, metrics, and request replay so you can debug, tune prompts, and optimize model choices from one unified dashboard.

    See every token, everywhere.

  • Task-Level Orchestration

    Describe tasks, not models. LLM.API maps them to the right tools, models, and prompts so you ship complex AI workflows with minimal glue code.

    Think tasks, not models.

  • High-Throughput Batch APIs

    Process millions of inferences efficiently with optimized batch pipelines, concurrency controls, and retry logic—all behind the same simple interface you use for single calls.

    Scale from 1 to millions.

Why run Runway Image-to-Video on LLM.API?

  • Unified AI Routing

    Practical: Reach Runway Image-to-Video and sibling models through one OpenAI-compatible endpoint.

  • Cost Control

    Compare provider price points and keep spend visible as you scale Runway Image-to-Video.

  • Reliability Layer

    Retry and route across configured providers when a single upstream blips.

  • Observability

    Trace prompts, tokens, and errors for Runway Image-to-Video alongside the rest of your stack.

  • Drop-in SDKs

    Practical: Keep using familiar OpenAI client patterns with base URL https://api.llmapi.ai/v1.

  • Model Breadth

    Swap Runway Image-to-Video for chat, media, or embedding alternatives without rewriting auth.

When to Use — When NOT to Use

Use it if...

  • You can tolerate longer generation times than chat (Runway Image-to-Video)
  • You need resolution-tiered pricing for motion content (Runway Image-to-Video)
  • You are building short-form generative video features (Runway Image-to-Video)

Avoid if...

  • You require sub-second interactive generation
  • You need broadcast-length films or guaranteed cinema-grade continuity
  • You only need still images or chat text

COMMUNITY

What creators say about AI video models

Summarised from publicly published developer and community reviews of this model family. Opinions are the sources’, not LLM.API’s, and may not be specific to Runway Image-to-Video.

  • Creator reviews of the latest Kling releases praise multi-shot consistency, native audio and genuine 4K output.
  • Comparisons with Sora and Runway focus on prompt adherence and motion stability rather than raw resolution.
  • The common workflow advice: generate many short takes cheaply, then upscale or extend the ones that land.

SOURCES

Frequently Asked Questions

  • What is Runway Image-to-Video?

    Video generation model by Muapi. On LLM.API it is addressed as `runway-i2v`.

  • What modalities does Runway Image-to-Video support?

    Runway Image-to-Video accepts text, image and produces video according to its architecture metadata on LLM.API.

  • How is Runway Image-to-Video priced on LLM.API?

    Listed pricing metadata shows: 1080p: $0.05/sec; 720p: $0.03/sec. Confirm live rates in the LLM.API dashboard or docs before production budgeting.

  • What are limitations of Runway Image-to-Video?

    Like other API models, Runway Image-to-Video can be wrong, incomplete, or uneven on edge cases. Validate outputs for high-stakes use. Media/OCR/STT models additionally depend on input quality.

  • When should I choose Runway Image-to-Video?

    You can tolerate longer generation times than chat — especially when you specifically need Runway Image-to-Video.

  • Where is the canonical page for Runway Image-to-Video?

    https://llmapi.ai/models/runway-i2v/

  • How do I call Runway Image-to-Video via API?

    Send OpenAI-compatible requests to https://api.llmapi.ai/v1 with model "runway-i2v" and your LLM.API key. See the code snippet on this page.

  • Can I use tools or structured outputs with Runway Image-to-Video?

    Tooling support varies; for pure video models, prefer the modalities listed rather than assuming chat tools.

  • What is the context length for Runway Image-to-Video?

    Reported context for Runway Image-to-Video is See provider specs. Always verify the active provider row if multiple providers are listed.

  • Which providers serve Runway Image-to-Video?

    LLM.API currently lists: muapi. Availability can vary by region and account.

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