Workspace · step 5 of 5

Decision Brief Builder

Export a paste-ready evidence pack for 2–4 selected models — verified evidence rows, explicit data gaps, the source trail, freshness notes, hosted availability, and a checklist of external tests still to run. Markdown by default; JSON via the export endpoint. Briefs are evidence, not recommendations. Generated query URLs are noindex; only the base /briefs/build page is indexable. New here? Start at /how-it-works.

Decision briefs are evidence packs, not recommendations.

A brief collects verified fields, data gaps, source trails, freshness notes, and hosted availability for 2–4 selected models. WebmasterID Models does not declare a winner, does not rank by price, and does not generate conclusions that imply endorsement. Unknown values stay explicitly unverified.

Not sure what a brief looks like? View an example decision brief → (pre-built from the long-context-analysis demo).

Plan the tests that produce the evidence in this brief at /lab — six testing playbooks + paste-ready Markdown templates. Use /lab/prompts to collect external observations before finalising this brief.

Confused by what to put in a brief? /learn/testing-ai-models explains how the brief pairs with your own tests. Or follow a sequenced path: Product manager · Governance.

ResetCap: 4 models per brief.

Selected models

Verified evidence rows

Data gaps

Source citations

Hosted availability

Models

Selected models (1)

In query order. Lifecycle reflects the verified value or 'unverified' when null.

DeepSeek R1-0528 (historical)
DeepSeek · lifecycle: retired
https://models.webmasterid.com/models/deepseek-r1

Evidence

Verified evidence (4)

Per-model verified field values. Source IDs map to the source trail below.

Model	Field	Value	Sources
deepseek-r1	identity	DeepSeek	—
deepseek-r1	lifecycle	retired	`api-docs.deepseek.com/api`
deepseek-r1	sources	2 primary-source citations	`api-docs.deepseek.com/newsapi-docs.deepseek.com/api`
deepseek-r1	freshness	Fresh (last checked 2026-05-21)	—

Honest gaps

Data gaps (5)

Unverified canonical fields per model. Gaps are not invented; the catalogue refuses to guess.

Model	Field	Reason	Affected route
deepseek-r1	context window	Vendor docs not yet retrieved or value not published.	/models/deepseek-r1
deepseek-r1	max output tokens	Not published on the model card or not yet verified.	/models/deepseek-r1
deepseek-r1	modality channels	Vendor card does not enumerate channels — modality recorded as null rather than guessed.	/models/deepseek-r1
deepseek-r1	knowledge cutoff	Vendor docs not yet retrieved or value not published.	/models/deepseek-r1
deepseek-r1	first-party pricing	Model creator publishes no paid first-party API rate, or rate is not yet verified.	/pricing

Sources

Source trail (2)

Primary-source citations referenced by the evidence rows above.

api-docs.deepseek.com/news
DeepSeek — R1-0528 release announcement
official-vendor-docs · retrieved 2026-05-21
api-docs.deepseek.com/api
DeepSeek — Chat completion API reference
official-vendor-docs · retrieved 2026-05-20

Outside the catalogue

Next external tests

The catalogue stops at verified fields. These are the checks a reader still needs to run before committing.

Run task-specific prompt tests against the candidate models in your own environment.
Verify request latency from your target deployment region.
Check rate limits in your provider account against your expected load.
Validate per-token cost against the vendor's current pricing page (references in this brief are not live quotes).
Confirm compliance / security requirements against your organisation's controls — verification status here is not a certification.

Export

Export this brief

Same query parameters as this page. Endpoint returns Markdown by default; pass ?format=json for the structured payload.

Build date: 2026-05-24. Briefs use this date as the deterministic generatedAt so the same build produces the same brief.