Schema upgrade — richer model parameter docs
Model parameter schemas now come from a more structured upstream source. As a result, every image / video endpoint now ships with:- Enum dropdowns for
size,resolution,quality— Playground renders select boxes instead of free-text inputs. - Default values shown next to each field (e.g.
seedance-2-0.resolutiondefaults to720P). - Conditional rules spelled out where they apply — e.g. on minimax-hailuo-02 the
resolutionfield now documents the three rules that constrain it (duration, first_frame_image, last_frame_image). - Field ordering reflects how parameters are typically filled in, not alphabetical.
- gpt-image-2 — previously missing the required
modelfield in the schema; now present.
Chat endpoints — removed unsupported params
temperature, top_p, and top_k have been removed from both /chat/completions and /messages. Claude 4.x rejects these parameters with HTTP 400 — documenting them was misleading. The final accepted parameter sets:- OpenAI Chat Completions:
model,messages,stream,max_tokens,stop - Anthropic Messages:
model,messages,max_tokens,system,stream,stop_sequences
Docs site refresh
Visual overhaul to match standard dev-docs density — switched to Mintlify’smaple theme (three-column layout with persistent code panel on endpoint pages), DM Sans typography, tighter body and sidebar sizing.Pricing updates
- kling-v3 — starting price drops from 0.0740 → 0.0610 USD / second (~17.6% lower).
- gemini-3.1-flash-image-preview — starting price adjusted to 0.0503 USD / call (was 0.0500).
- gpt-image-2 — starting price now listed: 0.9375 USD / token.
- seedance-2-0 — starting price now listed: 3.87 USD / token.
New model
- happyhorse-1.0 — Alibaba’s HappyHorse 1.0, supporting both text-to-video and image-to-video through
POST /v1/video-generation. Starting from 0.1158 USD / second.
Updated models
- gpt-image-2 — now accepts up to 10 reference
imagesfor image-to-image. - seedance-2-0 — adds new
audios,first_frame_image,last_frame_image, andvideosinputs.
Heads up — API base URL changed
The production base URL is nowhttps://api.linkmodel.ai/api/v1 (previously api.linkmodel.ai). Update your clients accordingly; the previous host will be retired.New models
- gpt-image-2 — OpenAI’s next-gen image model, now available through the unified
POST /v1/image-generationendpoint. - seedance-2-0 — Bytedance Seedance 2.0, available through
POST /v1/video-generation.
Other updates
- Pricing — kling-v3 now bills per second of generated video instead of per call.
- Changed — sora-2 now accepts a
resolutionparameter. Minor field-description refreshes on gemini-3-pro-image-preview, kling-v3, and minimax-hailuo-02.
Introducing LinkModel
One API for image and video generation. Save up to 30% versus official pricing.LinkModel is now publicly available. Use a single Bearer-token API to access 12 generative models from OpenAI, Google, MiniMax, Kling, Bytedance, and Alibaba — without rewriting client code per provider.What’s available today
- 6 video models — Sora 2, Kling v3, MiniMax Hailuo 2.3, MiniMax Hailuo 02, Wan 2.6, Seedance v1.5 Pro
- 6 image models — Gemini 3.1 / 3 Pro / 2.5 Flash, Seedream 4.0 / 4.5 / 5.0 Lite
- Two unified endpoints —
POST /v1/video-generationandPOST /v1/image-generation - One response envelope —
{ code, data, msg, request_id }across all endpoints
Get started
- Create an API key in your Dashboard
- Browse all models, or jump into the API Reference
- Copy any endpoint’s cURL example, drop in your key, and run