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Seed-Evolving

Published Publisher ByteDancedoubao-seed-evolving

Seed-Evolving

Positioning and release

Seed-Evolving is a continuously updated Seed-series model for coding and AI agents. Its stable model ID tracks rolling upgrades without requiring users to migrate endpoints. The official release history identifies November 5, 2026 as the update date for the version described here; the model was first released on June 23, 2026. (console.volcengine.com)

Capabilities and uses

The model supports text generation, reasoning, function calling, structured output, context caching, and understanding of documents, images and video. It is designed for complex task orchestration, long-horizon planning, code generation and tool use. Suggested applications include coding agents, research, document processing, customer service, sales, and understanding drawings or 3D models.

According to the publisher, the November 5 update improved agent task execution and resistance to hallucinations, while reducing latency and per-task costs in many scenarios. (console.volcengine.com)

Limits and operational notes

  • Context window and maximum input: 1024K tokens; maximum output and reasoning content: 256K tokens each.
  • Published rate limits: 500 requests per minute and 1,000,000 tokens per minute.
  • Audio understanding, including audio within video, is not supported.
  • The rolling model ID may change behavior as versions are upgraded. Reasoning is enabled by default; the documentation recommends returning encrypted reasoning content and keeping configuration consistent within a session. (console.volcengine.com)

Pricing

Volcengine Ark, mainland China: Standard online inference is billed in CNY for input lengths from 0 to 1,024 thousand tokens. The official rates are CNY 6.00 per million non-audio input tokens, CNY 30.00 per million output tokens, and CNY 1.20 per million non-audio cache-hit tokens. Cache storage is CNY 0.017 per million tokens per hour. These are reference prices; the actual order determines charges. Official pricing, checked November 15, 2026. (docs.volcengine.com)

The BytePlus international pricing page was also checked on November 15, 2026; it did not provide a verifiable price for this model ID. (docs.byteplus.com)

Official model source

Volcengine Ark: Seed-Evolving, checked November 15, 2026. (console.volcengine.com)