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Pick up to three sources to compare the stories ChamberLight collected from them, their topics, the people they cover and their scores.
411 stories · 95% range 96.5–97.3 · updated Sep 25, 2026
474 stories · 95% range 48.9–49.4 · updated Sep 25, 2026
100% of the stories on its site have no evidence of being copied from another outlet
441 stories
How originality is measured104 stories · 95% range 95–96 · updated Sep 24, 2026
133 stories · 95% range 49–50 · updated Sep 24, 2026
100% of the stories on its site have no evidence of being copied from another outlet
104 stories
How originality is measuredWhere the compared sources sit by political lean and credibility. Sources without a published US lean are not placed.
Use the arrow keys to move between outlets and Enter to open an outlet’s page. The table below the chart lists every outlet.
Lean is the average AI rating of an outlet’s own stories, from 0 (left) to 100 (right); opinion pieces are left out, and a reposted story counts toward its original publisher only when the original is confirmed. Credibility is the average AI rating, made on each story, of the outlet’s transparency, editorial standards and corrections record. Each score is published once at least 10 stories are rated; every dot’s card shows its story count and 95% range.
| Outlet | Lean | Credibility | Updated | ||||
|---|---|---|---|---|---|---|---|
| Lean Score | Lean Stories | Lean 95% range | Credibility Score | Credibility Stories | Credibility 95% range | ||
| Associated Press | Center 49 | 474 | 48.9–49.4 | High · 97 | 411 | 96.5–97.3 | Sep 25, 2026 |
| Reuters | Center 49 | 133 | 49–50 | High · 96 | 104 | 95–96 | Sep 24, 2026 |
ChamberLight collects only articles that mention the officials it tracks, so this is its sample of each outlet, not everything the outlet published. Shaded weeks: ChamberLight collected nothing from any outlet (254 weeks).
Associated Press: 492 stories; Reuters: 144 stories. From Apr 30, 2018 to Sep 21, 2026.
Similarity of the two topic mixes: cosine similarity of story counts across every topic either covers (100% = the same topics in the same proportions). General-news outlets usually score high.
Percentages are shares of each source's stories; a story can carry several topics.
80 people named in stories from every source (Associated Press: 263, Reuters: 110 in total).
Stories ChamberLight grouped across outlets that include at least one article credited to each of these sources. A copy on another site counts for its original publisher only when the evidence confirms it. The 25 most recent are listed.