Seed 2.0 Code Preview API pricing
Official ByteDance Seed list price, last checked Oct 29, 2026. Updated Oct 29, 2026.
Seed 2.0 Code Preview costs $0.50 per 1M input tokens and $3 per 1M output tokens, cached input at $0.10, and a 256K-token context window, per ByteDance Seed's official pricing page (checked Oct 29, 2026). It's priced in the middle of the pack: number 37 of 77 by blended price ($1.12 per 1M tokens at a 3 to 1 input to output mix). LMArena doesn't list it on the boards we track, so we don't rank its quality. For less, look at Qwen3 Coder Flash ($0.60 blended).
Seed 2.0 Code Preview price per million tokens
| Seed 2.0 Code Preview price per million tokens | USD |
|---|---|
| Input | $0.50 |
| Cached input | $0.10 |
| Output | $3 |
| Blended, 3 parts input to 1 part output | $1.12 |
| Context window | 256K tokens |
| Prompts above 128K | $1 in, $6 out |
Official note from ByteDance Seed: BytePlus ModelArk price. Prompts up to 128K. Longer prompts cost $1 in, $6 out.
What Seed 2.0 Code Preview costs for real work
List-price estimates for a month, no discounts. Our math, not a quote: change the token counts in the plan vs API calculator.
| Workload | Tokens a month | Seed 2.0 Code Preview | Qwen3.8 27B | Qwen3 Coder Flash |
|---|---|---|---|---|
| Light: a side project or personal assistant | 2M in, 0.5M out | $2.50 | $2.50 | $1.35 |
| Medium: a small team or one product feature | 20M in, 5M out | $25.00 | $25.00 | $13.50 |
| Heavy: a production app | 200M in, 50M out | $250 | $250 | $135 |
| Medium with 80% of input cached | 20M in (16M cached), 5M out | $18.60 | n/a | n/a |
| Medium, every prompt above the long-prompt threshold | 20M in, 5M out | $50.00 | $25.00 | $13.50 |
How Seed 2.0 Code Preview ranks on LMArena
It isn't on any LMArena board we track as of Oct 29, 2026. We don't estimate quality for unranked models. See the best model for each task for ranked options.
Closest rivals to Seed 2.0 Code Preview
The models nearest in price, other makers first. Ranks are on LMArena, where we have them.
| Model | In / out | Blended | Verdict |
|---|---|---|---|
| Qwen3.8 27B | $0.50 / $3 | $1.12 | Same price, no score to separate them. Compare |
| Qwen3.6 Plus | $0.50 / $3 | $1.12 | Same price, no score to separate them. Compare |
| Qwen3.5 122B-A10B | $0.40 / $3.20 | $1.10 | Same price, no score to separate them. Compare |
| ERNIE 5.1 | $0.56 / $2.53 | $1.05 | ERNIE 5.1 wins on price. Compare |
Cheaper alternatives to Seed 2.0 Code Preview
At least 40% cheaper blended, cheapest at the bottom of the list we found.
| Model | In / out | Blended | Verdict |
|---|---|---|---|
| Qwen3 Coder Flash | $0.30 / $1.50 | $0.60 | Qwen3 Coder Flash wins on price. Compare |
| GLM-5.3 FlashX | $0.37 / $1.25 | $0.59 | GLM-5.3 FlashX wins on price. Compare |
| Qwen3.6 Flash | $0.25 / $1.50 | $0.5625 | Qwen3.6 Flash wins on price. Compare |
More from ByteDance Seed
- Seed 2.0 Pro$0.50 in, $3 out per 1M
- Seed 2.1 Turbo$0.50 in, $2.50 out per 1M
- Seed 2.0 Lite$0.25 in, $2 out per 1M
- Seed 2.0 Mini$0.10 in, $0.40 out per 1M
FAQ
How much does the Seed 2.0 Code Preview API cost per million tokens?
$0.50 per 1M input tokens and $3 per 1M output tokens, plus $0.10 per 1M for cached input, as of Oct 29, 2026. A typical 3 to 1 input to output mix works out to $1.12 per 1M tokens.
Does Seed 2.0 Code Preview charge more for long prompts?
Yes. Prompts above 128K: $1 in, $6 out.
Is Seed 2.0 Code Preview cheaper than Qwen3.8 27B?
About the same. A medium month (20M input and 5M output tokens) costs $25.00 on Seed 2.0 Code Preview and $25.00 on Qwen3.8 27B at list price.
How does Seed 2.0 Code Preview rank on LMArena?
It isn't listed on the LMArena boards we track, so we show no quality rank rather than guess.
What is a cheaper alternative to Seed 2.0 Code Preview?
Qwen3 Coder Flash costs $0.30 in and $1.50 out per 1M tokens, about 1.9x less blended.
Where does this Seed 2.0 Code Preview price come from?
From ByteDance Seed's official pricing page, which we check every day. This page was last checked Oct 29, 2026.