Seedream 4.5 - Oxen.ai

Try Seedream 4.5 in the Workbench

Run this model interactively, tune parameters, and compare outputs.

Model ID: bytedance-seedream-4-5 bytedance/seedream-4.5 is an image generation model. It excels in high-fidelity text-to-image and image-to-image generation with improved consistency, editing capabilities, and realism in physics, lighting, and multi-angle outputs compared to prior versions. Some other noteworthy features of bytedance/seedream-4.5 include multi-reference control (up to 10 images), batch generation (up to 6-15 images), 4K resolution support, and enhanced text rendering.

Metric	Value
Parameter Count	Unknown
Mixture of Experts	Unknown
Context Length	Unknown
Multilingual	No
Quantized*	Unknown

*Quantization is specific to the inference provider and the model may be offered with different quantization levels by other providers.

Example request

Use the Workbench as a request builder: configure parameters for this model in the UI, then open the API tab to copy the exact cURL or Python call.

Sync
Async
Async with SSE

See the image generation reference for more details.

Minimal
Basic parameters
All parameters

curl -X POST https://hub.oxen.ai/api/ai/images/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere."
}'

curl -X POST https://hub.oxen.ai/api/ai/images/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ]
}'

curl -X POST https://hub.oxen.ai/api/ai/images/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ],
  "aspect_ratio": "1:1",
  "size": "4K"
}'

See the async queue reference for more details.

Minimal
Basic parameters
All parameters

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere."
}' | jq -r '.generations[0].generation_id')

# Poll the single generation until it 404s (terminal state).
while curl -s -o /dev/null -w "%{http_code}" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    "https://hub.oxen.ai/api/ai/queue/$GEN_ID" | grep -q "^200$"; do
  sleep 5
done
echo "Done. See the 'Async with SSE' tab to receive the result URL."

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ]
}' | jq -r '.generations[0].generation_id')

# Poll the single generation until it 404s (terminal state).
while curl -s -o /dev/null -w "%{http_code}" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    "https://hub.oxen.ai/api/ai/queue/$GEN_ID" | grep -q "^200$"; do
  sleep 5
done
echo "Done. See the 'Async with SSE' tab to receive the result URL."

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ],
  "aspect_ratio": "1:1",
  "size": "4K"
}' | jq -r '.generations[0].generation_id')

# Poll the single generation until it 404s (terminal state).
while curl -s -o /dev/null -w "%{http_code}" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    "https://hub.oxen.ai/api/ai/queue/$GEN_ID" | grep -q "^200$"; do
  sleep 5
done
echo "Done. See the 'Async with SSE' tab to receive the result URL."

See the async queue reference for more details.

Minimal
Basic parameters
All parameters

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere."
}' | jq -r '.generations[0].generation_id')

# Stream the SSE channel, grab the data line that follows a
# media_generation_completed event for our id, and pretty-print it.
curl -sN -H "Authorization: Bearer $OXEN_API_KEY" https://hub.oxen.ai/api/events \
  | awk -v id="$GEN_ID" '
    /^event: media_generation_completed$/ { expect=1; next }
    /^data: / && expect {
      payload = substr($0, 7)
      if (index(payload, "\"generation_id\":\"" id "\"")) { print payload; exit }
      expect = 0
    }
  ' | jq .

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ]
}' | jq -r '.generations[0].generation_id')

# Stream the SSE channel, grab the data line that follows a
# media_generation_completed event for our id, and pretty-print it.
curl -sN -H "Authorization: Bearer $OXEN_API_KEY" https://hub.oxen.ai/api/events \
  | awk -v id="$GEN_ID" '
    /^event: media_generation_completed$/ { expect=1; next }
    /^data: / && expect {
      payload = substr($0, 7)
      if (index(payload, "\"generation_id\":\"" id "\"")) { print payload; exit }
      expect = 0
    }
  ' | jq .

# Enqueue, capture the generation id.
GEN_ID=$(curl -s -X POST https://hub.oxen.ai/api/ai/queue \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "bytedance-seedream-4-5",
  "prompt": "An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting '\''Oxen.ai Cafe'\'' in glitching cyan and magenta lettering above it'\''s outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere.",
  "input_image": [
    "https://hub.oxen.ai/api/repos/elau/assets/file/main/bloxy/bloxy_cropped_512x512.png"
  ],
  "aspect_ratio": "1:1",
  "size": "4K"
}' | jq -r '.generations[0].generation_id')

# Stream the SSE channel, grab the data line that follows a
# media_generation_completed event for our id, and pretty-print it.
curl -sN -H "Authorization: Bearer $OXEN_API_KEY" https://hub.oxen.ai/api/events \
  | awk -v id="$GEN_ID" '
    /^event: media_generation_completed$/ { expect=1; next }
    /^data: / && expect {
      payload = substr($0, 7)
      if (index(payload, "\"generation_id\":\"" id "\"")) { print payload; exit }
      expect = 0
    }
  ' | jq .

Fetch model details

The models endpoint returns the full model object, including its json_request_schema.

curl -H "Authorization: Bearer $OXEN_API_KEY" https://hub.oxen.ai/api/ai/models/bytedance-seedream-4-5

Request parameters

Required parameters

Field	Type	Default	Description
`prompt`	`string`	`"An exterior shot of a gritty neon-drenched cyberpunk caf\u00e9, a flickering holographic sign projecting 'Oxen.ai Cafe' in glitching cyan and magenta lettering above it's outdoor windows. High-contrast digital aesthetic with neon tones, chromatic aberration, digital noise artifacts, and dense megacity back-alley atmosphere."`	Prompt for generated image

Optional parameters

Field	Type	Default	Description
`input_image`	`array<string>`	—	Input images to transform or use as reference (supports multiple image urls)
`aspect_ratio`	`string`	`"1:1"`	Aspect ratio for the generated image One of: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, match_input_image.
`size`	`string`	`"4K"`	Image resolution: 2K (2048px) or 4K (4096px). One of: 2K, 4K.
`seed`	`integer`	—	Random seed. Set for reproducible generation

Inference API

Try Seedream 4.5 in the Workbench

​Example request

​Fetch model details

​Request parameters

​Required parameters

​Optional parameters

Example request

Fetch model details

Request parameters

Required parameters

Optional parameters