Image generation
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, lighting, and color tone. It also enhances portrait refinement and small-text rendering. The model’s multi-image composition capabilities have been significantly strengthened, and both reasoning performance and visual aesthetics continue to advance, enabling more accurate and artistically expressive image generation.
One image per request
$0.042Per image
Price
- Per image
- $0.042
Includes the 5% MiniRouter fee. The final charge uses the provider’s actual cost and stays within your reserved hold. MiniRouter absorbs any overrun.
Estimate your credit hold
Credit is reserved before the request. The final charge may be lower.
Up to 32,000 characters.
Estimated hold
2× the total estimated cost, including the 5% fee. Your charge stays within this hold; unused credit is released.
Estimate only; nothing is sent. Includes text and one output image.
Use the Images API
Set MINIROUTER_API_KEY to your inference key. Copy the example.
curl --fail-with-body --retry 0 --max-time 120 \
'https://api.minirouter.sh/v1/images/generations' \
-H "Authorization: Bearer $MINIROUTER_API_KEY" \
-D response.headers --output response.json \
-H 'Content-Type: application/json' \
--data '{
"model": "bytedance/seedream-4.5",
"prompt": "A blue circle on a white background.",
"n": 1
}'Keep the request ID. The image response can arrive before its final charge. Check Request logs for the settled cost. A failed or disconnected request may still incur a cost; these examples disable automatic retries.
Supported operations
- Generate from a prompt
- POST /v1/images/generations
- Send JSON with a prompt. The response contains one base64 image.