Bytedance Seed model product
Seed1.5-Embedding
5-Embedding is an embedding model from Bytedance Seed ranked in MTEB.
Updated Sep 8, 2026. Default version: Seed1.5-Embedding
LLMBoard Embedding Score88.4Seed1.5-Embedding
Coverage85%5 benchmark families
Context window32.8KTokens
Official input priceN/AOfficial price unavailable
Seed1.5-Embedding Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Seed1.5-Embedding Benchmark Results
Benchmark scores for Seed1.5-Embedding.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkMTEB English v2 Reranking | Score50.67% | Rank06 | Participants241 | Percentile97.92% | EvidenceA | EvaluatedN/A |
| BenchmarkMTEB English v2 Retrieval | Score67.45% | Rank06 | Participants212 | Percentile97.63% | EvidenceA | EvaluatedN/A |
| BenchmarkMTEB English v2 Clustering | Score60.83% | Rank09 | Participants217 | Percentile96.30% | EvidenceA | EvaluatedN/A |
| BenchmarkMTEB English v2 Semantic Similarity | Score87.23% | Rank10 | Participants211 | Percentile95.71% | EvidenceA | EvaluatedN/A |
| BenchmarkMTEB English v2 Classification | Score88.63% | Rank20 | Participants257 | Percentile92.58% | EvidenceA | EvaluatedN/A |
Seed1.5-Embedding Arena Results
Preference and agent-evaluation results for the default version.
No Arena results
The default version does not have a matching Arena result yet.
Seed1.5-Embedding Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- N/A
- Official provider
- N/A
- Lowest third-party
- N/A
- Tracked offerings
- 0
No provider prices
The default version has no current input or output token prices.
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Seed1.5-Embedding Runtime Performance
Provider-specific output speed and catalog latency for Seed1.5-Embedding. Runtime does not affect the capability score.
No runtime data
No provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Seed1.5-Embedding Specifications
Technical details for the model's default version.
- Version
- Seed1.5-Embedding
- Released
- Apr 25, 2025
- Knowledge cutoff
- Unknown
- Parameters
- N/A
- Context window
- 32.8K
- Max output
- N/A
- Inputs
- text
- Outputs
- embedding
- Open weights
- No
- License
- Unspecified
Seed1.5-Embedding Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionSeed1.5-Embedding | Released | LLMBoard88.41 | ParametersN/A | Context32.8K | Max outputN/A | Open weightsNo | LicenseUnspecified |
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What is Seed1.5-Embedding?
Key information about Seed1.5-Embedding and its available data.
5-Embedding is an embedding model from Bytedance Seed. It is a ranked model from MTEB.
Data as of 2026-09-08.
FAQ
Common questions about Seed1.5-Embedding.
When was Seed1.5-Embedding released?
Seed1.5-Embedding's default version was released on Apr 25, 2025.
How much does Seed1.5-Embedding cost?
No official standard PAYG price is currently available for Seed1.5-Embedding.
Who created Seed1.5-Embedding?
Seed1.5-Embedding was created by Bytedance Seed.
What is the context window for Seed1.5-Embedding?
The default version has a 32.8K token context window.
Is Seed1.5-Embedding open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Seed1.5-Embedding?
No provider offering is currently linked to the default version.