z-ai
Seed 2.1 Turbo vs GLM 5.2
73.2 overall · $0.998 / 1M
// bytedance-seed
Seed 2.1 Turbo
bytedance-seed/seed-2-1-turbo
reasoningtool callingimage inputvideo input
Seed 2.1 Turbo costs $0.500 per 1M input tokens and $2.50 per 1M output tokens with a 262K-token context window.
A reasoning, tool-calling model from bytedance-seed, released Aug 12, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.
- Input / 1M
- $0.500
- Output / 1M
- $2.50
- Context
- 262K
- LiveBench overall
- Not evaluated
Specs and pricing
| Input price USD per 1M prompt tokens | $0.500 |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | $2.50 |
| Blended price 3:1 input:output — #135 most expensive of 343 listed models | $1.00 |
| Cached input read Blank means not priced separately — not free | — |
| Cache write | — |
| Context window | 262,144 tokens |
| Max output | 235,929 tokens |
| Input modalities | text, image, video |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | Aug 12, 2026 |
What Seed 2.1 Turbo costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $320.00/mo |
| RAG assistant 8K in / 600 out × 100K requests | $550.00/mo |
| Coding agent 40K in / 4K out × 20K requests | $600.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $687.50/mo |
| Bulk classification 500 in / 20 out × 5M requests | $1,500/mo |
Compare Seed 2.1 Turbo with
Benchmarked models at a similar price.
deepseek
Seed 2.1 Turbo vs DeepSeek V4 Pro 0813
77.4 overall · $0.990 / 1M
nvidia
Seed 2.1 Turbo vs Nemotron 3 Ultra
67.4 overall · $1.05 / 1M
qwen
Seed 2.1 Turbo vs Qwen3.8 27B
75.3 overall · $1.06 / 1M
deepseek
Seed 2.1 Turbo vs DeepSeek V4 Pro 0423
71.6 overall · $1.08 / 1M
qwen
Seed 2.1 Turbo vs Qwen3.6 27B
64.0 overall · $0.915 / 1M
Seed 2.1 Turbo FAQ
How much does Seed 2.1 Turbo cost?
Seed 2.1 Turbo lists at $0.500 per 1M input tokens and $2.50 per 1M output tokens. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $550.00 at list price.
What is the context window of Seed 2.1 Turbo?
Seed 2.1 Turbo accepts up to 262,144 tokens of context and can return up to 235,929 output tokens per response.
Does Seed 2.1 Turbo support tool calling?
Yes — Seed 2.1 Turbo supports tool (function) calling and exposes extended reasoning. It accepts text, image, video input.
How does Seed 2.1 Turbo score on benchmarks?
LiveBench has not published a run for Seed 2.1 Turbo yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.
What is the API model ID for Seed 2.1 Turbo?
On OpenRouter the model ID is "bytedance-seed/seed-2-1-turbo". It was listed on Aug 12, 2026.
More from bytedance-seed
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.