#21 Seed 2.1 Turbo
high- Cost
- $0.058
- Time
- 355.4s
- Tokens
- 23,053 tok
Bytedance Seed
Release: 2026-08-12
Tested on: 2026-08-12 22:43
bytedance-seed/seed-2-1-turbo::high
~200B total (~20B active)MoEClosedEstimated
Summary
Seed 2.1 Turbo scores 8.9 on AI BENCHY and ranks #21. It has 9.9 reliability, a 80.3% pass rate, $1.641 total cost, and 162.13s average response time.
What makes Seed 2.1 Turbo unique: It uses unusually many reasoning tokens, which can help explain its slower or more expensive runs.
Model facts
Researched on 2026-08-12
- Parameters
- ~200B total (~20B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. The exact API checkpoint is closed and its architecture and parameter counts are not disclosed; estimate follows the Seed2 production tier.
8.9
Consistency
8.6
9.9
$1.641
Total Output Tokens
635,380
Total Input Tokens
104,686
Input Price
$0.500 / 1M
Output Price
$2.500 / 1M
Flaky tests
4
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-08-14 04:30 Re-test | 8.9 | 10.0 | $1.797 | Compare | |
| 2026-08-12 22:43 Initial run | 8.9 | 9.9 | $1.641 | Current run |
Run comparison
| Run | Benchmark coverage | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-12 22:43 · Initial run | 66/66 attempts | 8.9 | 8.6 | 9.9 | 16/22 | 4 | 635,380 | 104,686 | $1.641 | 162.13s |
| 2026-08-14 04:30 · Re-test | 66/66 attempts | 8.9 | 8.9 | 10.0 | 16/22 | 3 | 697,731 | 104,695 | $1.797 | 173.96s |
| Difference | — | 0.0 | -0.3 | -0.1 | 0 | +1 | -62351 | -9 | -$0.156 | -11838ms |
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price |
|---|---|---|
| 2026-08-12 23:12 | $0.500 / 1M | $2.500 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
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Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 8.2 | 7.9 | |
| Coding | 10.0 | 10.0 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 2.9 | 4.4 | |
| General Intelligence | 6.5 | 3.4 | |
| Instructions following | 9.8 | 10.0 | |
| Puzzle Solving | 10.0 | 10.0 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |