Lean
Lean appears in 57 analyzed articles across the measured technology press. Recent coverage is rising, counting every mention over recent months. This page shows the public snapshot: movement, coverage mix, recent sources, and what drove the latest change.
Compass measures press coverage, not Lean's product quality, business performance, or market value.
Counting every mention, coverage of Lean is rising — it appears in 57 analyzed articles across the technology press.
What Lean coverage is made of over time: story type, claim stage as reported, and press framing. This measures the coverage, not the product.
Across 9 classified coverage items, one item is 11 percentage points — read the shares below as the shape of a small sample, not as figures precise to the point.
Story type and claim stage are shares of the 9 classified coverage items in this window.
How to read this
The stream below stacks each month's coverage by the lens you choose: Tone (how the press frames the story — promotional, skeptical, critical, or neutral), Story type (launches, funding, lawsuits, partnerships…), or Stage — how far the reported claim has gone: speculation → announcement → launch → results.
Taller bands mean more coverage that month; the dots beneath mark notable non‑neutral events. Every signal is sourced and dated.
How this is counted — why the article numbers differ
57 articles mention Lean across the corpus. The coverage make-up above is measured on the 9 of them that were read into dated, classified coverage items — and one article can produce more than one item, because story type, claim stage and framing are read separately.
- launch OpenAI announced that an internal AI system produced a proof and Lean formalization related to the Navier–Stokes equations.
7 posts on company and project channels mention Lean across the full 15-month record. They come from any company or project channel Compass reads, not only Lean's own. They are counted separately from the 57 press articles.
Where they were published:Amazon Science · 3OpenAI · 2Cloud Blog · 1Ethereum Foundation Blog · 1
- Oct 6, 2026OpenAI published new mathematics results from an internal frontier model and shared Lean proof formalizations and research details on GitHub.OpenAI
- Sep 8, 2026AI Labs shared an AI-generated solution to the Navier–Stokes Millennium Prize Problem, including a writeup and a formal proof in Lean.OpenAI
Press coverage and company and project posts are two separate counts. Every press figure on this page, including the monthly line and the rising or falling call, comes from the independent press only. Before October 2026, Compass counted these posts as press coverage. How this is measured.
As of 7 Oct 2026 · corpus coverage 94% · 356,656 articles. Correlational & coverage-limited.
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This snapshotDirection, footprint & coverage make-up — free, no account, always
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Full history & coverage trailMonth-by-month make-up & every cited source
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ConnectionsThe topics it's most often covered alongside
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Compare & exportBenchmark vs. other topics; export the source pack
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Watchlist & alertsGet pinged when the make-up or direction shifts