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Bytedance Seed: Seed 1.6 Flash

Low-latency ByteDance Seed model for high-throughput chat, extraction, and lightweight tool use

Source-linked seed Closed weights Released 2025-08-28
API record Report
InputT
OutputT
Input price$0.03/M
Output price$0.22/M
Context256K
Max output32K
Providers2
Inference availability

Providers

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

Report a price
Providers offering Seed 1.6 Flash
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
Ofox volcengine/doubao-seed-1-6-flash 256K 32K $0.03 $0.22 $0.004 Tools Docs ↗
OpenRouter bytedance-seed/seed-1.6-flash 262.144K 32.768K $0.075 $0.3 ReasoningToolsJSON 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 $0.03/M

Across 2 priced providers

Median input $0.052/M

Midpoint of listed rates

Highest input $0.075/M

2.5× the lowest listed rate

Output range $0.22 – $0.3

Per million output tokens

Ofox $0.03/MLowest
OpenRouter $0.075/M
Cost calculator

Estimate a workload

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

Context limits also differ by provider, from 256K to 262.144K 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 No
× Vision input No
× Open weights No
Model family
seed
Knowledge cutoff
Not documented
License
Not documented
Release date
2025-08-28
Model ID
bytedance-seed/seed-1-6-flash
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-1-6-flash
curl
curl "https://www.modelbench.lol/api/v1/models/bytedance-seed/seed-1-6-flash"
Common questions

Frequently asked questions

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

What is Seed 1.6 Flash?

Low-latency ByteDance Seed model for high-throughput chat, extraction, and lightweight tool use. It is published by Bytedance Seed and catalogued here from Models.dev.

How much does Seed 1.6 Flash cost?

Listed input pricing starts at $0.03 per million tokens from Ofox, rising to $0.075 across 2 listed providers.

What is the context length of Seed 1.6 Flash?

Seed 1.6 Flash accepts up to 256K tokens of context and returns up to 32K output tokens.

Does Seed 1.6 Flash support tool calling and structured output?

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

Which providers serve Seed 1.6 Flash?

2 providers list this model: Ofox, OpenRouter.

Are the weights for Seed 1.6 Flash open?

No. This model is served through hosted APIs only.

When was Seed 1.6 Flash released?

The catalog records a release date of 2025-08-28, last verified Aug 17, 2026.

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