Doubao Seed 2.1 Turbo
01
Snapshot
Overall
63
rank #20 of 22
Coding
61
rank #19 of 22
Multimodal
73
rank #17 of 22
Input / Output
$0.42 / $2.08
USD per 1M tokens
Context
256K
usable recall 90
Speed
~75 tok/s
TTFT 0.4s
Aggregated from public sources and independently weighted; methodology on the Terms page. Scores within 3 points are treated as statistically tied.
02
Specs & pricing
Every tracked field. List API prices in USD per 1M tokens; verify current vendor pricing before purchase.
| Vendor | ByteDance (CN) |
| Released / current | 2026.06 |
| Licensing | Closed / managed API |
| Context window | 256K |
| Max output | 256K |
| Effective-context score | 90 |
| Input / output price | $0.42 / $2.08 per 1M tokens |
| Cache discount | Context-cache discount (rate not published) |
| Free tier | Doubao App free |
| Speed / TTFT | ~75 tok/s / 0.4s |
| Function calling | 80 |
| Refusal rate | ~10% |
| English / Chinese | 68 / 90 |
| Modalities | text, image, video |
| Fine-tuning | Yes |
| Private deployment | Yes (enterprise) |
| SOC2 / no-train | no / yes |
03
Strengths & watch-outs
Strengths
- Low price
- Video support
- Fast
- Built for volume
Watch-outs
- Below the Pro tier
- Average English
04
Where it ranks among 22 models
Overall 63/100 (#20), coding 61 (#19), multimodal 73 (#17). See the full boards and side-by-side compare on the leaderboard.
05
Pricing in practice
Illustrative monthly bill for 100M input + 30M output tokens: $104 at list. Your mix and cache-hit ratio change this.
Illustrative model using public list rates before any enterprise agreement; cache discount: Context-cache discount (rate not published).
06
Frequently asked questions
How much does Doubao Seed 2.1 Turbo cost?
List API pricing is $0.42 input and $2.08 output per 1M tokens. Context-cache discount (rate not published). Doubao App free
What is Doubao Seed 2.1 Turbo's context window, and is it usable end to end?
It advertises a 256K window with 256K max output; its effective-context score is 90/100, which is the better predictor of whether long-document details are actually retained.
Is Doubao Seed 2.1 Turbo good for coding?
Its coding aggregate is 61/100, rank #19 of 22. It is adequate for scripts and assisted completion rather than the most demanding SWE-style work.
Can I self-host Doubao Seed 2.1 Turbo?
No. It is a closed managed API (private deployment may be negotiated for enterprise; there is no weights download.
How strong is it in Chinese and on multimodal inputs?
Chinese score is 90 versus English 68; multimodal aggregate is 73/100 (rank #17), accepting text, image, video.