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Bytedance Seed: Seed 2.0 Pro

Flagship ByteDance Seed 2.0 model for complex multimodal reasoning and long-horizon agent workflows

Source-linked seed Closed weights Released 2026-02-14
API record Report
InputT
OutputT
Input price$0.5/M
Output price$3/M
Context256K
Max output128K
Providers4
Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

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Providers offering Seed 2.0 Pro
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
Merge Gateway bytedance/dola-seed-2.0-pro 131.072K 32.768K $0.5 $3 Reasoning Docs ↗
Deep Infra ByteDance/Seed-2.0-pro 256K 128K $0.5 $3 $0.1 ReasoningToolsJSON Docs ↗
EmpirioLabs AI seed-2-0-pro 256K 128K $0.63 $3.79 $0.63 ReasoningToolsJSON Docs ↗
Ofox volcengine/doubao-seed-2.0-pro 256K 128K $0.67 $3.36 $0.14 ReasoningTools Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Listed rates

Price across providers

Input price per million tokens as published by each provider. Bars are drawn from listed rates only — no traffic weighting, since the catalog observes no requests.

Lowest input $0.5/M

Across 4 priced providers

Median input $0.565/M

Midpoint of listed rates

Highest input $0.67/M

1.3× the lowest listed rate

Output range $3 – $3.79

Per million output tokens

Merge Gateway $0.5/M
Deep Infra $0.5/M
EmpirioLabs AI $0.63/M
Ofox $0.67/M
Cost calculator

Estimate a workload

$0.00
Excludes taxes, non-token charges, and tiered discounts.

2 providers list the identical $0.5 input rate, so price alone will not separate them — compare context limits, max output, and capabilities above.

Context limits also differ by provider, from 131.072K to 256K tokens. Compare the provider table above before choosing on price alone.

Specification

Capabilities

Recorded from the source catalog and provider listings.

Reasoning Yes
Tool calling Yes
Structured output Yes
Attachments Yes
Vision input Yes
× Open weights No
Model family
seed
Knowledge cutoff
Not documented
License
Not documented
Release date
2026-02-14
Model ID
bytedance-seed/seed-2.0-pro
Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry
No published benchmark results

ModelBench does not infer quality from price, context size, or model name. When a source publishes a comparable result, it appears here with its version and link.

Read the methodology
Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log
No changes recorded

This record has not changed within the retained import history.

Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation
Endpoint
GET https://www.modelbench.lol/api/v1/models/bytedance-seed/seed-2.0-pro
curl
curl "https://www.modelbench.lol/api/v1/models/bytedance-seed/seed-2.0-pro"
Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Seed 2.0 Pro?

Flagship ByteDance Seed 2.0 model for complex multimodal reasoning and long-horizon agent workflows. It is published by Bytedance Seed and catalogued here from Models.dev.

How much does Seed 2.0 Pro cost?

Listed input pricing starts at $0.5 per million tokens from Merge Gateway, rising to $0.67 across 4 listed providers.

What is the context length of Seed 2.0 Pro?

Seed 2.0 Pro accepts up to 256K tokens of context and returns up to 128K output tokens.

Does Seed 2.0 Pro support tool calling and structured output?

Provider catalogs list support for tool calling, structured output, reasoning, and image input.

Which providers serve Seed 2.0 Pro?

4 providers list this model: Merge Gateway, Deep Infra, EmpirioLabs AI, Ofox.

Are the weights for Seed 2.0 Pro open?

No. This model is served through hosted APIs only.

When was Seed 2.0 Pro released?

The catalog records a release date of 2026-02-14, last verified Aug 17, 2026.

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