OpenBrief
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What the picker changes
  • Top topics digest — the cards score the selected period against the prior 4 weeks.
  • 12-week heatmap & outlet matrix — show the 12 weeks ending at the selected week (they slide back with the picker, they aren’t a fixed snapshot).
  • Per-topic volume / alias drift — same 12-week trailing window, anchored on the selected period.
  • Coverage gap quadrant — scores the selected period against the 12 weeks before it (not including it).
  • Anomaly cards — only show alerts the detector fired during the selected period. Quiet weeks legitimately show none.
What stays as-is
  • Outlet orientation strip / lean colours — context-only, drawn from the last 12 weeks of activity regardless.
  • Co-occurrence graph — recent-activity anchored, not picker-driven.
  • Source & topic profiles — all-time data for the topic; the picker doesn’t affect them.
Rolling 7 days is a sliding live window for “current vibes”; switch to Weekly to compare specific weeks side-by-side.
Week of 25 May 2026
This week
Media transparency

How NZ media is covering politics

Who leads, who lags, who’s missing the story. Findings are derived from 7 outlet we read plus the public-discourse corpus over the last 12 weeks. Updated weekly. Every claim links to the underlying data. Methodology →

Coverage through 6 Jun 2026 · analysis updated 3h ago

This period’s media story

Plain-English observations generated from the same anomaly, lead-lag, and alias-drift signals that drive the rest of the site. Methodology →

  1. Cost Of Living And Economic Collapse is being discussed publicly but 1 of 7 outlets have been quiet on it this period.

    see the topic → Report this finding
  2. 4 outlets shifted framing on Treaty Of Waitangi Reinterpretation from “treaty of waitangi identity” to “treaty of waitangi symbolism”.

    see the framing chain → Report this finding
  3. Press reporting led public discourse on Media Accountability by 4 weeks (r=1.00).

    see the topic → Report this finding
  4. Press reporting led public discourse on Move On Orders by 4 weeks (r=0.98).

    see the topic → Report this finding
  5. Public discourse led press reporting on Political-Transparency by 4 weeks (r=0.92).

    see the topic → Report this finding

Outlet scorecard

Per-outlet snapshot over the last 12 weeks: articles published, editorial lean (with link to how leans are assigned), and how each outlet tracks the discourse corpus on its balanced topics. Outlets with fewer than 20 articles in the window are hidden — the sample is too thin to read.

Outlet Lean Articles
12 wk
Lead/lag vs discourse Top topics Coverage gaps
Stuff
stuff
Centre-left 3,173
leads discourse
−0.3w avg · 3 topics
RNZ
rnz
Centre 2,417
lags discourse
+0.7w avg · 6 topics
NZ Herald
nzherald
Centre-right 2,074
lags discourse
+1.0w avg · 3 topics
Otago Daily Times
odt
Centre 1,911
in step with discourse
−0.2w avg · 4 topics
1News (TVNZ)
tvnz
Centre 1,492
in step with discourse
0.0w avg · 4 topics
The Spinoff
spinoff
Centre-left 422
in step with discourse
+0.2w avg · 8 topics
Newsroom
newsroom
Centre 338
lags discourse
+0.9w avg · 8 topics

Coverage gaps this period

Topics where the public is talking, but the press is mostly quiet. Pulled from the top-left quadrant of the press × discourse comparison: discourse volume well above its 12-week mean, press volume flat or below. Methodology →

Framing shifts

Topics where the dominant phrase moved this period, plus how many outlets adopted the new phrasing in the last 14 days. Lifted from the term-drift detector that powers the OpenBrief Pro brief. Methodology →

Methodology summary

Short version of the rules behind every claim on this page; the full methodology covers the data sources, lean assignment, balance filter, and corrections process.

Corpora

Press coverage from the seven NZ news outlets on /press. Public discourse from commentary, press releases and podcast transcripts on /discourse. Both corpora map onto the same canonical topic taxonomy so cross-corpus comparisons are apples-to-apples.

Balance filter

A topic only enters the lead-lag, gap, and outlet-scorecard analyses when it has at least 5 items in each corpus over the 12-week window. Single-spike topics and corpus-dominated outliers are excluded so the cross-corpus comparison reads cleanly. Methodology →

Lean assignment

Outlet leans (left, centre-left, centre, centre-right, right, n/a) are editor-assigned at outlet onboarding and reviewed when an outlet’s editorial line visibly shifts. We do not score individual articles for bias; the page reports observations, not verdicts. Methodology →

What “lead/lag” means

Pearson correlation between an outlet’s weekly volume on a topic and the discourse corpus’s weekly volume on the same topic, evaluated at lag offsets from −4 to +4 weeks. The reported tendency is the average best-lag across the outlet’s balanced topics. Positive lag means the outlet trails discourse; negative means it leads.

What this page won’t do

No scoring of outlets for “bias” or “accuracy”. No LLM-generated prose. No predictions about what will or won’t be covered. No findings on small denominators — outlets below 20 articles in the window are hidden, and topics below 5 items per corpus are excluded.

Corrections

Every finding carries a “Report this finding” link that opens a correction request pre-filled with the finding’s text. Submissions land in the same workflow that runs the rest of the site — see the public corrections log.

Spotted something wrong on this page? Report a correction.