Visual retrieval
Ground on-screen evidence
Slides, charts, product demos, whiteboards, and screen recordings become searchable context for downstream reasoning.
Video understanding for AI agents
Search what is shown in videos.
Cerul turns slides, charts, demos, code screens, and whiteboards into queryable evidence for agents. One platform backbone, two tracks: lightweight b-roll discovery and knowledge-dense retrieval.
Shared backbone
2 tracks
B-roll and knowledge retrieval on the same platform spine.
Public API
2 endpoints
Search and usage first. Heavy processing stays behind workers.
Agent path
Skill-first
Installable skills and direct HTTP before extra adapters.
Interactive Demo
Try the API live
Surface
Segment retrieval
Output
Summary plus time range
Active Input
Find the segment where the speaker explains the AGI timeline and shows a roadmap slide.
Response
Running initial preview request...
Try it now
Copy, paste, run. Get video results in seconds.
KNOWLEDGE SEARCHFind insights from interviews and talks
knowledge-search.sh
POSTcurl "https://api.cerul.ai/v1/search" \
-H "Authorization: Bearer YOUR_CERUL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"query": "Sam Altman views on AI video generation tools",
"search_type": "knowledge",
"max_results": 3,
"include_answer": true
}'knowledge-response.json
200 OK{
"results": [
{
"id": "yt_hmtuvNfytjM_1223",
"score": 0.96,
"title": "Sam Altman on the Future of AI Creative Tools",
"description": "OpenAI CEO discusses the implications of AI video generation for creative industries",
"video_url": "https://www.youtube.com/watch?v=hmtuvNfytjM&t=1223s",
"thumbnail_url": "https://i.ytimg.com/vi/hmtuvNfytjM/hqdefault.jpg",
"source": "youtube",
"speaker": "Sam Altman",
"timestamp_start": 1223,
"timestamp_end": 1345,
"duration": 122,
"answer": "Altman believes AI video generation will democratize filmmaking, allowing anyone to create professional content. He emphasizes the importance of human creativity in prompting and curation."
},
{
"id": "yt_8XJ6z1K3n9P_445",
"score": 0.91,
"title": "Fireside Chat: AI and the Future of Media",
"description": "Discussion on how AI tools are reshaping video production and storytelling",
"video_url": "https://www.youtube.com/watch?v=8XJ6z1K3n9P&t=445s",
"thumbnail_url": "https://i.ytimg.com/vi/8XJ6z1K3n9P/hqdefault.jpg",
"source": "youtube",
"speaker": "Sam Altman",
"timestamp_start": 445,
"timestamp_end": 582,
"duration": 137
}
],
"credits_used": 2,
"credits_remaining": 998,
"request_id": "req_know_20240310_xyz"
}B-ROLL SEARCHFind stock footage and clips
broll-search.sh
POSTcurl "https://api.cerul.ai/v1/search" \
-H "Authorization: Bearer YOUR_CERUL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"query": "cinematic drone shot of coastal highway",
"search_type": "broll",
"max_results": 3
}'broll-response.json
200 OK{
"results": [
{
"id": "pexels_28192743",
"score": 0.94,
"title": "Aerial drone shot of coastal highway",
"description": "Cinematic 4K drone footage of winding coastal road",
"video_url": "https://videos.pexels.com/video-files/28192743/aerial-coastal-drone.mp4",
"thumbnail_url": "https://images.pexels.com/photos/28192743/pexels-photo-28192743.jpeg",
"duration": 18,
"source": "pexels",
"license": "pexels-license"
}
],
"credits_used": 1,
"credits_remaining": 999
}Why Cerul
Transcripts are not enough.
Agents can already search web pages. The missing layer is visual evidence inside videos. Cerul indexes what was actually on screen, not only what happened to be spoken.
Thin orchestration
Keep the API layer narrow
FastAPI handles auth, usage, and response shaping. Ingestion, indexing, and media-heavy work stay in Python workers.
Replaceable models
Do not lock product logic to one model
CLIP, OpenAI embeddings, or future internal models can slot into the same shared retrieval backbone.
Two tracks, one platform
Ship the showcase first.
Keep the deeper moat.
The front end borrows Tavily's unified product rhythm: one brand, one stack, distinct product surfaces.
Launch track
B-roll
A lightweight showcase that proves the value of visual search quickly, with lower ingestion cost and immediate demo value.
- Semantic search over stock footage sources such as Pexels and Pixabay
- Fast CLIP-based indexing without ASR
- Low-cost lead generation surface
- Ideal for public demos and partner onboarding
Core moat
Knowledge
Long-form talks, podcasts, product keynotes, and technical videos indexed into segments that reflect what was said and shown.
- Scene detection and key-frame analysis
- Timestamp-aware retrieval and answer generation
- Built for evidence-backed agent workflows
- Higher-value foundation for enterprise search
Benchmarks
Make evaluation visible.
Cerul leans on benchmarks to establish trust, especially where transcript-only systems lose visual recall.
Slide recall
How well the system captures text and chart evidence from frames
93%
Demo grounding
Whether product screens and on-screen actions remain queryable
88%
Transcript-only gap
How much signal is lost if the system reads words but ignores visuals
71%
Operator console
One dashboard for usage, keys, and pipelines.
Usage ledger
128 credits
Monthly credit accounting with the same request IDs used for search logs.
Index freshness
3h 14m
Current lag between source discovery and available search results.
Search health
99.94%
Healthy request success rate across both product tracks.
Pricing
Keep pricing operator-readable.
Free
$0
for early evaluation
Best for trying the public API surface and validating early demo integrations.
- 1,000 monthly credits
- B-roll and knowledge search access
- Single API key
Builder
$20
per month
For teams building agent workflows that need predictable usage and more active keys.
- 10,000 monthly credits
- 5 active API keys
- Usage insights and search logs
Enterprise
Custom
volume and support matched
For production deployments with private ingestion pipelines, SLA expectations, and compliance review.
- Custom credit limits and rate policies
- Private indexing workflows
- Dedicated onboarding and review