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ByteDance Seed

4 models built

ByteDance Seed is ByteDance Ltd.'s foundation-model research team, founded in 2023 and based in China. Beyond the Seed line of LLMs, the group also publishes Seedream (image) and Seedance (video) models. On OpenKey, four Seed models are available, all multimodal — text, image, and video in, text out — and all sharing a 262,144-token context window. The lineup spans two generations: Seed 1.6 and Seed 1.6 Flash (released December 2025), and the newer Seed-2.0-Mini and Seed-2.0-Lite (February and March 2026). None of the four are free, but pricing runs from sub-cent-per-million-token input on the Mini up to $0.25/M on the larger models — a lineup built for teams that want multimodal input without flagship-tier cost.

Lineup

For general multimodal work, Seed 1.6 ($0.25/M input, $2.00/M output) and Seed-2.0-Lite (same pricing, newer training data as of March 2026) are the top picks — same context window, same price, so pick 2.0-Lite unless you have a reason to stick with 1.6. For latency- or cost-sensitive workloads, Seed 1.6 Flash is the cheapest per-token option at $0.075/M input and $0.30/M output. Seed-2.0-Mini sits in between at $0.10/M input and $0.40/M output, giving you a newer model at a lower price than the flagship pair if you don't need the full Seed 1.6/2.0-Lite quality tier. All four carry the same 262,144-token context, so the choice comes down to output quality needs versus cost, not context length.

  • Seed-2.0-Lite ctx 262K · in $0.258 · out $2.06
  • Seed-2.0-Mini ctx 262K · in $0.103 · out $0.412
  • Seed 1.6 ctx 262K · in $0.258 · out $2.06
  • Seed 1.6 Flash ctx 262K · in $0.077 · out $0.309

Prices per 1M tokens, flat 3% fee included.

Questions

What does ByteDance Seed pricing look like on OpenKey?
Across the four Seed models, input prices range from $0.075/M (Seed 1.6 Flash) to $0.25/M (Seed 1.6 and Seed-2.0-Lite), and output prices range from $0.30/M to $2.00/M. OpenKey charges provider list price plus a flat 3% fee — for example, Seed 1.6 Flash's $0.075/M input becomes $0.075 × 1.03 = $0.07725/M on OpenKey. None of the Seed models are free.
Which ByteDance Seed model is cheapest?
Seed 1.6 Flash, at $0.075/M input and $0.30/M output — the lowest of the four. On OpenKey that's $0.075 × 1.03 = $0.07725/M input and $0.30 × 1.03 = $0.309/M output. It's also multimodal (text, image, video in) with the same 262,144-token context as the rest of the lineup, so you're not trading away context length for the lower price.
Is there a free ByteDance Seed model on OpenKey?
No. All four Seed models — Seed 1.6, Seed 1.6 Flash, Seed-2.0-Mini, and Seed-2.0-Lite — are paid. If you need a free multimodal option, look elsewhere in OpenKey's roster of 25 free models across its 329 total models; Seed isn't one of the labs offering a no-cost tier.