How research works
What you can expect from one /v1/research call — quality, latency, citations, streaming.
POST /v1/research is built to feel like one call but deliver the
quality of a hand-curated brief. You send a question, you get back a
synthesised answer with citations — typically in 30 to 90 seconds.
Under the hood, Brime runs an iterative agent that plans the right sub-queries, gathers fresh evidence from across the open web, and writes a tight answer with every claim sourced. You never need to choose models, tune knobs, or wire up a multi-step pipeline yourself.
What you get back
Every research response carries the same shape:
answer— a synthesised, sourced answer to your question.sources— the ranked evidence the answer is built on, with title, URL, snippet, score, andpublished_datewhere available.steps— a compact trace of which sub-queries fired in each round, useful for debugging and observability.request_id/credits_used/latency_ms— the metadata your pipeline needs for tracing, billing, and SLOs.
Quality guarantees
- Multi-round refinement. When the first pass doesn't have enough signal to answer confidently, Brime keeps researching until it does — up to a tuned round budget. You don't pay extra for the extra rounds.
- Citations on every claim. Every sentence in the answer ties back to one or more sources. Hallucination is minimised by design: the synthesiser only sees evidence we actually retrieved.
- Freshness aware. Recency is part of the planner's signal. Ask about something that happened today and the agent favours today's sources over older ones, automatically.
- Citation-clean answers. No mid-paragraph footnote markers cluttering
the prose — references live in the
sourcesarray, keyed by index.
Latency you can plan around
Typical wall-clock: 30–90 seconds end-to-end. Two factors move the needle:
- Repeating the same (or near-same) question hits a warm cache — identical follow-up calls complete in well under a second.
- Open-ended questions with vague scope take longer than tight, well- scoped questions. "Compare X vs Y for use case Z" is faster than "what should I know about X".
If you need to surface progress to a human, streaming is built in.
Streaming, when you need it
Add Accept: text/event-stream (or stream: true in the body, or use
the SDK's research_stream method) and Brime emits a live event for
every step. You can render a "Researching: …" status, paint sources as
they're discovered, and reveal the answer the moment it's ready.
The event vocabulary is small and stable:
| Event | When | Surface as |
|---|---|---|
intent | The agent has parsed your question | Researching: <query> |
tool_call | A round of search starts | Live status |
tool_result | That round returned evidence | Result-count badges |
sources | The cumulative source list updates | Progressive bibliography |
final | The synthesis is ready | Paint the answer |
done | Stream ends cleanly | Close your reader |
If the connection drops, reconnect with the standard SSE
Last-Event-ID: <n> header — Brime replays anything you missed, then
continues live. Drop-tolerant by default.
For the full event schema (including error and timeout shapes),
see Status & streaming.
Costs and limits
- Flat 5 credits per call, regardless of how many rounds the agent decides to run. No per-round surprises.
- Polling status or streaming events is free — no double-billing for the long-running view.
- The single bound on call duration is a 10-minute soft alarm. Practically, every successful call finishes well within that.
- Errors are never billed. A 401 / 429 / 5xx response carries
credits_used: 0.
When research is the right tool
| You want | Use | Why |
|---|---|---|
| URLs to feed elsewhere | POST /v1/search (0.5 cr) | Cheaper, faster, single-tier SERP. |
| Full page text from URLs you already have | POST /v1/extract (1 cr/URL) | Direct fetch + clean. |
| A complete, sourced answer to a question | POST /v1/research (5 cr) | Multi-round agent, citations included. |
If you find yourself orchestrating search → extract → LLM-synthesis by hand, that's the loop research replaces.
See also
- Research API reference — request and response schemas with the live playground.
- Best practices: research — query shaping, filtering, and edge cases.
- Credit model — why 5 credits is the flat price.