API Updates

Claude Opus 4.8 from Anthropic is now live on EvoLink — Anthropic's most capable Opus model for complex reasoning, long-horizon agentic coding, and high-autonomy workflows, with a 1M-token context window.

Claude Opus 4.8

• Model ID: claude-opus-4-8
• Context window: 1M tokens
• Max output: 128K tokens
• Capabilities: hybrid reasoning, advanced coding, agentic tool orchestration, vision input
• Recommended workloads: frontier coding agents, complex reasoning, long-context analysis, high-autonomy automation
• Billing: token-based — Input, Output, Cache Write, Cache Hit; web search tool billed per request
• Migration: drop-in replacement for Opus 4.7 — same API and pricing tier; Opus 4.7 remains available
• Try Claude Opus 4.8

The following models have been retired from EvoLink and are no longer available for new requests. Please migrate any remaining integrations to the recommended alternatives below.

Retired models

• GPT Image 1 — gpt-image-1
• GPT Image 1.5 (Beta) — gpt-image-1.5-beta (alias gpt-image-1.5-lite)
• GPT-4O Image — gpt-4o-image
• Kimi K2 Series — kimi-k2-thinking, kimi-k2-thinking-turbo

Recommended alternatives

• Image generation → GPT Image 2
• For other workloads, see the full model catalog

Wan 2.7, the next-generation video model from Alibaba's Tongyi Wanxiang team, is now live on EvoLink. It brings text-to-video, image-to-video, reference video, and video editing together under a single /v1/videos/generations endpoint — just switch the model parameter to change modes.

Wan 2.7 Text-to-Video

• Model ID: wan2.7-text-to-video
• Features: Generate cinematic video from text prompts, with optional audio input and seed control
• Duration: 2-15 seconds, 720p / 1080p
• Highlights: Prompts up to 5000 characters with negative prompt support

Wan 2.7 Image-to-Video

• Model ID: wan2.7-image-to-video
• Features: Animate images into video with first frame, last frame, or both under your control
• Duration: 2-15 seconds, 720p / 1080p
• Highlights: Precise first/last frame control with driving audio and clip input

Wan 2.7 Reference-Video

• Model ID: wan2.7-reference-video
• Features: Generate clips driven by reference images, videos, and audio
• Highlights: Reference-guided for consistent style and content

Wan 2.7 Video Edit

• Model ID: wan2.7-video-edit
• Features: Edit existing videos with text instructions and up to 4 reference images
• Highlights: No re-rendering required — keep original audio or generate new audio
• Wan 2.7 API

Gemini 3.5 Flash from Google is now live on EvoLink — a next-generation Flash-tier model with multimodal input (text/image/video/audio) at unified pricing and built-in reasoning output.

Gemini 3.5 Flash

• Model ID: gemini-3.5-flash
• Context window: 1.05M tokens
• Multimodal input: text, image, video, audio — audio priced at the same rate as text input
• Built-in reasoning: thinking output included in standard output billing, no separate dimension
• Recommended workloads: multimodal reasoning, audio/video understanding, planning, balanced agentic workflows
• Billing: 4-dimension token billing — Input, Output, Cache Hit, Audio Input
• Try Gemini 3.5 Flash

The entire HappyHorse 1.0 video generation lineup has been reduced in price, effective immediately for all users.

Affected Models

• happyhorse-1.0-text-to-video
• happyhorse-1.0-image-to-video
• happyhorse-1.0-reference-to-video
• happyhorse-1.0-video-edit