The veracity of AllSides

Checked on January 18, 2026
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Executive summary

AllSides is a widely used media-bias aggregator that publicly rates over a thousand outlets and fact-checkers using a mix of multipartisan editorial reviews and blind surveys; it positions itself as a tool to expose hidden bias and broaden readers’ perspectives [1] [2] [3]. Its methodology is transparent and iterative, but its focus on perceived political leanings rather than factual accuracy, plus editorial discretion over which outlets appear and a reliance on crowd participation and funding, introduce predictable blind spots that users must account for [4] [2] [5].

1. What AllSides says it does and how it does it

AllSides states that its Media Bias Ratings are produced by combining multipartisan Editorial Reviews with Blind Bias Surveys and other methods — panels of left, center, and right reviewers assess content and ordinary Americans rate anonymized stories — and the organization publishes its methods and periodic chart updates openly [1] [6] [7]. AllSides also operates specialty charts — Fact Check Bias, Influencer Bias, News Aggregator Bias — and curates a balanced newsfeed by publishing a daily mix of left, center, and right content intended to help readers see multiple perspectives [8] [9] [10].

2. Credible strengths: transparent, multipartisan, and iterative

The strongest evidence for AllSides’ veracity is methodological transparency: the site explains its multi-step processes, quantifies ratings, documents when and why outlets are re-reviewed, and notes that ratings combine point-in-time assessments with long-term trend analysis — all practices consistent with a disciplined rating project [1] [7]. The use of blind surveys and multi-partisan editorial panels is designed to reduce source-based bias in perception, and public blog posts explain shifts in outlet placement and the inclusion or reclassification of outlets [6] [5].

3. Limitations that matter for assessing reliability

AllSides measures perceived political bias, not factual accuracy, and it explicitly declines to adjudicate truth claims or act as an arbiter of accuracy — a design choice that limits its ability to tell users which outlets are factually reliable even as it highlights political slant [4]. Selection of which outlets appear on the chart rests partly on editorial discretion, and some judgments incorporate crowd-sourced reviews and member participation, introducing potential sampling and selection biases tied to who participates and who funds the project [2] [3].

4. Sources of potential skew and conflict of interest

AllSides solicits participation from the public (Blind Bias Surveys), invites sustaining members for expanded features, and offers services like bias audits and Balance Certification for newsrooms — revenue and user-engagement streams that could, in practice, create incentives around which outlets get reviewed, how often, and how results are presented, even if AllSides frames these as supporting its mission [5] [7]. Wikipedia and outside observers note that volunteer editors and staffers with declared political leanings contribute to ratings, which can be both a strength (multiperspective input) and a vulnerability if volunteer pools are uneven [3].

5. What independent observers say and what remains uncertain

Outside commentary cited in Wikipedia records suggests scholars and journalists find AllSides’ methodology useful but also caution that bias charts can give a false sense of reliability and are not a substitute for media literacy; experts have praised aspects of AllSides’ methods while warning users about limits to any chart-based approach [3]. The provided reporting does not include a systematic third‑party validation study that measures AllSides’ ratings against independent benchmarks of bias or accuracy, so claims about being “the world’s most trustworthy” rely on internal descriptions and user-facing documentation rather than external certification cited here [1] [7].

6. Bottom line: a useful tool with clear boundaries

AllSides is a verifiable, transparent effort to map perceived political bias and actively updates its ratings using multipartisan reviews and blind surveys, making it a valuable starting point for readers seeking ideological balance [1] [6]. However, it is not a definitive measure of truth or journalistic quality, its inclusion and updating processes involve editorial discretion and community funding that can shape outcomes, and readers should pair AllSides’ bias ratings with direct fact-checking and source-level scrutiny when judging reliability [4] [2].

Want to dive deeper?
How do AllSides Blind Bias Surveys work and who participates in them?
What independent studies have compared AllSides ratings to other media-bias measurement projects?
How do AllSides’ Bias Certifications and paid services influence which outlets get re-reviewed?