ByteDance
Seed2.1 Pro
Seed2.1 Pro is a ByteDance model with Not verified context, Not verified in / Not verified out per million tokens, last verified October 2, 2026. Open weights: not verified. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.
ByteDance's Seed2.1 Pro productivity model; the first-party release and model card describe multi-step agent and coding work plus image/video understanding.
Recorded profile verification October 2, 2026Individual provider fields may change
| Specification | Seed2.1 Pro |
|---|---|
| Provider | ByteDance |
| Tier | Frontier |
| Context window | Not verifiedUnverified |
| Max output | Not verifiedUnverified |
| Input / 1M tokens | Not verifiedUnverified |
| Output / 1M tokens | Not verifiedUnverified |
| Weights | Not verifiedUnverified |
| Parameters | Not verifiedUnverified |
| Reasoning levels | Not verifiedUnverified |
| Modalities | text, image, video |
| Released | June 23, 2026 |
Pricing tiers: The Seed2.1 Pro family model is described by ByteDance, but the checked BytePlus price and model-list captures have no matching Pro row. A Pro-specific API ID, context/output limits and USD tariff remain unverified. The concrete hosted SKU linked from the family page is Turbo; do not assign its prices or limits to Pro.
Best for
- Agents
- Coding
- Multimodal work
Watch out
Source receipts
Catalog figures for this model were checked against the following sources.
- ByteDance Seed2.1 family overview and linked Turbo deployment (accessed 2026-10-01)
- ByteDance Seed2.1 Pro and Turbo release: June 23 (accessed 2026-10-01)
- ByteDance Seed2.1 model card: scoped vendor evaluations (accessed 2026-10-01)
- BytePlus USD standard, context-tier, cache, Batch and Flex prices (accessed 2026-10-01)
- BytePlus exact hosted model IDs and token limits (accessed 2026-10-02)
Common questions
Seed2.1 Pro
Answered from the verified figures on this page rather than general guidance.