Inference
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ByteDance

Seed 1.6

Seed 1.6 is a reasoning model from ByteDance. It has no scored result.

  • Closed weights
  • Reasoning
  • Input: image · text · video
  • Released 2025-06
  • Retires 11 Nov 2026
No resultsEnough results for an index.
IndexAll categories, out of 100.UnrankedMedian 51.0
CoverageIndex weight that has results.0%
SpeedOutput tokens per second.37/sMedian 67/s
First tokenSeconds to the first output token.0.8 sMedian 1.3 s
Input / 1MUS dollars per 1M input tokens.$0.25Median $0.60
Output / 1MUS dollars per 1M output tokens.$2.00Median $2.55
ContextMaximum tokens in one request.262KMedian 262K
EloLMArena rating and rank.—Median 1422

Details

From OpenRouter
API IDThe model ID on OpenRouter.
bytedance-seed/seed-1.6
Max outputMaximum output tokens per request.
33K
Knowledge cutoffLast date of training data.
—
ToolsTool calls on OpenRouter.
Yes
JSON outputOutput follows a given JSON schema.
Yes
Cache read / 1MUS dollars per 1M cached tokens.
—
WeightsLink to the published weights.
—
RetiresDate OpenRouter removes the model.
11 Nov 2026

Capabilities

Index per category, out of 100.
Out of 100
AgenticMulti-step tasks with tools.None counted——
CodingCode writing and repair.None counted——
ReasoningLogic problems and puzzles.None counted——
MultimodalTasks with images and text.None counted——
KnowledgeFacts and expert knowledge.None counted——
MultilingualTasks in many languages.None counted——
InstructionTasks with strict prompt rules.None counted——
MathMath problems.None counted——

Results

0 counted
This model has no scored result.

Sources

BenchLMCC BY-NC 4.0OpenRouterTerms restrict reuse

History

5 releases
Output / 1M$2.00 → $2.00
23 Oct 202612 Nov 2026

Questions

How much does Seed 1.6 cost?
$0.25 per 1M input tokens, $2.00 per 1M output tokens.
How fast is Seed 1.6?
37 output tokens per second, 0.8 s to the first token.
What is the context window of Seed 1.6?
262K tokens.
Is Seed 1.6 open source?
No. Its weights are not published.
When was Seed 1.6 released?
June 2025.

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