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Create video from reference images

createVideoFromReferences

Generate a video from 1-5 reference images and a text prompt (references-to-video). Unlike createVideo, which animates a single source image, this composes a new scene that borrows characters, objects, and style from the reference images. Each image can be a URL or base64. Griffin (default, 768p) generates a soundtrack, at the same per-second rate as createVideo. The older 480p model (griffin) has been retired from this endpoint. The job result is the video URL and its actual duration in seconds. Choose the output shape with aspect_ratio ("default" lets the model decide). The chosen model and duration must be compatible (incompatible combinations return HTTP 400). Credits are held when the job is accepted; the final charge is rate × produced seconds, never more than for the duration you requested, and the difference (or everything, if the job fails or is cancelled) is refunded. Pass an optional request_id to tag the result so you can locate it later via listGenerations (type video). Related tools: createVideo for image-to-video, editVideo to modify a generated video. Async generation job: returns {id, status} - poll getApiJob (job and credit contract: see the server instructions).

Credits: credits/s × seconds, per model: Griffin 2/s (shortest duration 5s, so 10 credits minimum), Eagle 1.5/s [LEGACY], Eagle with Audio 2/s [LEGACY]; [LEGACY] models are scheduled for removal - do not use them for new work; see this endpoint's full pricing table in the API docs.

Input Schema

NameRequiredDescriptionDefault
requestBodyYesPayload for generating a video from 1-5 reference images and a text prompt.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"griffin-hd\" (Griffin HD): 2 credits/s, shortest duration 5s, so 10 credits minimum · Cinematic videos in any style, with audio, 768p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin-hd\"."New value: +"Model to use. Available models:\n- \"griffin-hd\" (Griffin): 2 credits/s, shortest duration 5s, so 10 credits minimum · Cinematic videos in any style, with audio, 768p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin-hd\"."
  2. Changed1 schema field changed
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"griffin-hd\" (Griffin HD): 2 credits/s, shortest duration 5s, so 10 credits minimum · Cinematic videos in any style, with audio, 720p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin-hd\"."New value: +"Model to use. Available models:\n- \"griffin-hd\" (Griffin HD): 2 credits/s, shortest duration 5s, so 10 credits minimum · Cinematic videos in any style, with audio, 768p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin-hd\"."
  3. Changed4 schema fields changed
    • changedInput schema / properties / requestBody / properties / duration / description
      Previous value: -"Duration in seconds. Available values depend on the model:\n- griffin: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- griffin-hd: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Default: 5."New value: +"Duration in seconds. Available values depend on the model:\n- griffin-hd: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Default: 5."
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s, shortest duration 5s, so 12.5 credits minimum · Fast cinematic videos in any style, with audio, 480p\n- \"griffin-hd\" (Griffin HD): 4 credits/s, shortest duration 5s, so 20 credits minimum · Same as Griffin, but in 720p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin\"."New value: +"Model to use. Available models:\n- \"griffin-hd\" (Griffin HD): 2 credits/s, shortest duration 5s, so 10 credits minimum · Cinematic videos in any style, with audio, 720p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin-hd\"."
    • changedInput schema / properties / requestBody / properties / model / enum
      Previous value: -[
-  "griffin",
-  "griffin-hd",
-  "eagle",
-  "eagle-audio"
-]New value: +[
+  "griffin-hd",
+  "eagle",
+  "eagle-audio"
+]
    • changedInput schema / properties / requestBody / properties / model / example
      Previous value: -"griffin"New value: +"griffin-hd"
  4. Changed3 schema fields changed
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s\n- \"griffin-hd\" (Griffin HD): 4 credits/s\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"eagle\"."New value: +"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s, shortest duration 5s, so 12.5 credits minimum · Fast cinematic videos in any style, with audio, 480p\n- \"griffin-hd\" (Griffin HD): 4 credits/s, shortest duration 5s, so 20 credits minimum · Same as Griffin, but in 720p\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"griffin\"."
    • changedInput schema / properties / requestBody / properties / model / example
      Previous value: -"eagle"New value: +"griffin"
    • changedInput schema / properties / requestBody / properties / request_id / description
      Previous value: -"Optional client-provided identifier, unique per request. Re-sending the same request_id returns the existing job instead of generating again. Also usable with the results endpoint."New value: +"Optional client-provided identifier, unique per request. Re-sending the same request_id returns the existing job instead of generating again. Also usable as the request_id filter of listGenerations."
  5. Changed1 schema field changed
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s\n- \"griffin-hd\" (Griffin HD): 4 credits/s\n- \"eagle\" (Eagle): 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s Default: \"eagle\"."New value: +"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s\n- \"griffin-hd\" (Griffin HD): 4 credits/s\n- \"eagle\" (Eagle): 1.5 credits/s · LEGACY - scheduled for removal, do not use for new work\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s · LEGACY - scheduled for removal, do not use for new work\nModels marked LEGACY still work for existing integrations but will be removed; pick a current model for anything new. Default: \"eagle\"."
  6. Changed3 schema fields changed
    • changedInput schema / properties / requestBody / properties / duration / description
      Previous value: -"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Default: 5."New value: +"Duration in seconds. Available values depend on the model:\n- griffin: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- griffin-hd: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Default: 5."
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s Default: \"eagle\"."New value: +"Model to use. Available models:\n- \"griffin\" (Griffin): 2.5 credits/s\n- \"griffin-hd\" (Griffin HD): 4 credits/s\n- \"eagle\" (Eagle): 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): 2 credits/s Default: \"eagle\"."
    • changedInput schema / properties / requestBody / properties / model / enum
      Previous value: -[
-  "eagle",
-  "eagle-audio"
-]New value: +[
+  "griffin",
+  "griffin-hd",
+  "eagle",
+  "eagle-audio"
+]
  7. Changed3 schema fields changed
    • changedInput schema / properties / requestBody / properties / duration / description
      Previous value: -"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- forge-pixel: 1, 1.5, 2, 2.5, 3, 3.5, 4 Default: 5."New value: +"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Default: 5."
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s\n- \"forge-pixel\" (Forge Pixel): 2 credits/s, min 4 Default: \"eagle\"."New value: +"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s Default: \"eagle\"."
    • changedInput schema / properties / requestBody / properties / model / enum
      Previous value: -[
-  "eagle",
-  "eagle-audio",
-  "forge-pixel"
-]New value: +[
+  "eagle",
+  "eagle-audio"
+]
  8. Changed6 schema fields changed
    • removedInput schema / properties / requestBody / properties / aspect_ratio / default
      Removed value: -"default"
    • changedInput schema / properties / requestBody / properties / aspect_ratio / description
      Previous value: -"Output aspect ratio. \"default\" lets the model choose."New value: +"Output aspect ratio. \"default\" lets the model choose. Default: \"default\"."
    • removedInput schema / properties / requestBody / properties / duration / default
      Removed value: -5
    • changedInput schema / properties / requestBody / properties / duration / description
      Previous value: -"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- forge-pixel: 1, 1.5, 2, 2.5, 3, 3.5, 4"New value: +"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- forge-pixel: 1, 1.5, 2, 2.5, 3, 3.5, 4 Default: 5."
    • removedInput schema / properties / requestBody / properties / model / default
      Removed value: -"eagle"
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s\n- \"forge-pixel\" (Forge Pixel): 2 credits/s, min 4"New value: +"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s\n- \"forge-pixel\" (Forge Pixel): 2 credits/s, min 4 Default: \"eagle\"."
  9. Changed1 schema field changed
    • changedInput schema / properties / requestBody / properties / request_id / description
      Previous value: -"Optional client-provided identifier for this request. Use this to retrieve results later via the results endpoint."New value: +"Optional client-provided identifier, unique per request. Re-sending the same request_id returns the existing job instead of generating again. Also usable with the results endpoint."
  10. Changed3 schema fields changed
    • changedInput schema / properties / requestBody / properties / duration / description
      Previous value: -"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15"New value: +"Duration in seconds. Available values depend on the model:\n- eagle: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- eagle-audio: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15\n- forge-pixel: 1, 1.5, 2, 2.5, 3, 3.5, 4"
    • changedInput schema / properties / requestBody / properties / model / description
      Previous value: -"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s"New value: +"Model to use. Available models:\n- \"eagle\" (Eagle): Visual Quality: 8/10 · Motion Stability: 5/10 · 1.5 credits/s\n- \"eagle-audio\" (Eagle with Audio): Visual Quality: 8/10 · Motion Stability: 5/10 · 2 credits/s\n- \"forge-pixel\" (Forge Pixel): 2 credits/s, min 4"
    • changedInput schema / properties / requestBody / properties / model / enum
      Previous value: -[
-  "eagle",
-  "eagle-audio"
-]New value: +[
+  "eagle",
+  "eagle-audio",
+  "forge-pixel"
+]
  11. Added

TDQS

A4.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations only mark this as a non-read-only, non-destructive, non-idempotent write; the description adds the real behavioral contract: async job returning {id, status}, polling via getApiJob, HTTP 400 on incompatible model/duration pairs, credit hold-and-refund semantics, and request_id deduplication/lookup. The request_id dedupe slightly softens the idempotentHint=false, but it is framed as an opt-in tracing key rather than a genuine contradiction. Minor loss for the naming muddle where the retired model is called `griffin` while the enum value is `griffin-hd`.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with purpose and sibling differentiation, then behavior, then credit details, so an agent can stop reading early. Slightly over-long because the per-model pricing block duplicates what the schema's `model` enum already documents, and the legacy warning appears twice.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Covers everything an agent needs for a nested-payload async generation call: input shape and limits, model negotiation, the async job lifecycle and polling tool, error condition, credit mechanics, and result contents (video URL plus actual duration) even though there is no output schema. Nothing material is left to guess.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3; the description adds genuine meaning beyond it by explaining the model/duration compatibility constraint and its 400 error, that "default" lets the model choose the aspect ratio, and that request_id both dedupes and serves as a listGenerations filter. The credits paragraph largely restates the model descriptions in the schema, so the added value is real but not maximal.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a concrete verb and resource ("Generate a video from 1-5 reference images and a text prompt") and immediately contrasts it with the sibling createVideo ("animates a single source image" vs. composing a new scene). The distinction is explicit enough that an agent can pick the right tool without opening either schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives explicit when-to-use and when-not-to-use guidance: use this for reference-based composition, use createVideo for image-to-video, editVideo to modify a generated video. It also warns away from legacy models for new work, which prevents a costly wrong choice.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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