ByteDance Seed: Seedream 4.5

bytedance-seed/seedream-4.5

Seedream 4.5 is the latest in-house image generation model developed by ByteDance. Compared with Seedream 4.0, it delivers comprehensive improvements, especially in editing consistency, including better preservation of subject details,...

Modalities

Image + Text → Image

Input / Output PriceSpecialized media pricingToken prices are not claimed for this media endpoint

Context4.1Ktokens · maximum across providers

ReleasedDec 23, 2025Public catalog metadata

Availability & data sources Listed in CLSSAI · 1 reference endpoints

CLSSAI API · Directory listedCatalog preview · Exact metadata

ACCESS

Where this model works

Catalog preview and CLSSAI API routing are independent decisions with separate sources.

Catalog previewTestable in Playground

Testable

Exact capability metadata is available. CLSSAI can prepare the Image generation request without guessing the model contract.

Evidence: Exact ID bytedance-seed/seedream-4.5 · /images
Mapped mode: Image generation

CLSSAI APICallable through CLSSAI API

Callable

The exact model ID is listed in the current CLSSAI public directory. This proves current route eligibility, not a completed inference for every mode.

Evidence: Exact ID bytedance-seed/seedream-4.5 is directory-listed

Image test status

The request contract and frontend path are ready. A real recorded output has not yet been captured for this exact model and mode.

Request contract: Build verified
/images · Schema tests · 2026-08-05
Frontend path: Available
Image form · 2026-08-05
Real model output: Not yet verified
No keyed smoke-test record

Providers

Compare published prices and endpoint capabilities. Select a provider for context limits, caching prices and supported parameters.


	Specialized	See source	--	--	100.00%

USD per 1M tokens. Prices and metrics describe catalog endpoints, not CLSSAI routing. “--” means no measurement was supplied. Uptime: last 30 minutes.

Specialized Media Pricing

This model uses media-specific billing units. Open a provider for the available pricing information.

Per-generation price unavailable

The source does not supply a verified per-generation amount. No token-equivalent price is inferred.

Performance

Latency and throughput history are not supplied by the public endpoint API. Check the catalog for its latest performance charts.

Uptime

Successful requests in the last 30 minutes, as reported by the catalog. A snapshot does not show historical reliability.

Seed100.00%

Benchmarks

No scored evaluations are included in the public model metadata. View the source for benchmarks and their methodology.

Apps

Application rankings require verified traffic data, which is not included in this source.

Activity

Historical token and request volumes are not supplied by the public API. The catalog shows activity on its own network.

Frequently asked questions

Provider availability, context limits and API capabilities.

Which providers serve ByteDance Seed: Seedream 4.5?

Seed are listed in the public reference data. Check CLSSAI availability above before making a request.

What context length is available for ByteDance Seed: Seedream 4.5?

The largest available context window is 4,096 tokens.

Which API parameters does ByteDance Seed: Seedream 4.5 support?

The providers list 4 distinct supported parameters. Open an endpoint row to inspect them.

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