Redwood Research
What it was engaged to test, on what terms, what it found in the document's own words, and what happened afterwards. Every line is a record; every record links to the document it was read from.
- Foundednot stated
- HQBerkeley, California
- Registry idEIN 87-1702255
- TestsAI control; incident investigation.
- Money, as the roster puts itNonprofit (philanthropy).
- Filesdossier · observatory, sliced to it · graph
- Labs tested
- Anthropic
- Models
- Fable 5 / Mythos 5Fable 5.1 / Mythos 5.1Haiku 5.5Mythos PreviewOpus 4.8Opus 5Opus 5.5Sonnet 5.5
- Span of engagements
- 7 April 2026 – 7 October 2026
- Terms and findings
- 0 of 8 documents state a term · 0 quote a finding
- Money in, US dollars, stated single-recipient rows
- $133,086,000 8 in · 0 outfrom Coefficient Giving · OpenAI
- Seats, by side
- evaluator 3 lab 1 between 2 5 people: Ajeya Cotra, Benjamin Weinstein-Raun, Buck Shlegeris, Lawrence Chan, Ryan Greenblatt
- Afterwards
- incident 1
Each count is the number of store records that name this evaluator. An engagement is one lab document naming it for one model; an outcome is an event on the record afterwards; the money, seats and moves are the observatory's rows filtered to it. A cell that cannot be filled says not stated, and each table ends with how many of its rows state each field.
Filters combine: any of the values ticked within a dimension, all of the dimensions at once. A table that has no column for a dimension you have set says so instead of showing rows that cannot match. The address bar carries the slice.
What it was engaged to test 8 engagements, Anthropic
In date order, each from the lab document that names the evaluator. Under each: the four terms that document states (access, model stage, publication, payment) and the finding in its words. A term the document is silent on reads not stated; the tags beside the terms are read off their words and are what the console filters on.
- Document: Claude Mythos Preview system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
- Document: Claude Opus 4.8 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
Sources: Claude Opus 4.8 system card f862f05832 - Document: Claude Fable 5 and Mythos 5 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
- Document: Claude Opus 5 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
Sources: Claude Opus 5 system card 3343e68bde - Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
- Document: Claude Opus 5.5 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
Sources: Claude Opus 5.5 system card e3e8bb5b4f - Document: Claude Sonnet 5.5 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
Sources: Claude Sonnet 5.5 system card 01012fd2d0 - Document: Claude Haiku 5.5 system card
- Access windownot stated
- Model stagenot stated
- Publicationnot stated
- Paymentnot stated
Finding: not stated in the document
Sources: Claude Haiku 5.5 system card b9855e6b05
Dated 8 of 8Model named 8 of 8Terms stated 0 of 8Finding quoted 0 of 8
The terms, as the documents state them
The same engagements as a grid, one row per document and model, so the silences line up: a document that gives an access window but no payment term, or a finding but no publication term, reads that way here.
| Document | Model | Access window | Model stage | Publication | Payment | Finding | Record |
|---|---|---|---|---|---|---|---|
| Claude Mythos Preview system cardAnthropic · 7 April 2026 | Mythos Preview | not stated | not stated | not stated | not stated | not stated | c98c070f3f |
| Claude Opus 4.8 system cardAnthropic · 28 May 2026 | Opus 4.8 | not stated | not stated | not stated | not stated | not stated | f862f05832 |
| Claude Fable 5 and Mythos 5 system cardAnthropic · 9 June 2026 | Fable 5 / Mythos 5 | not stated | not stated | not stated | not stated | not stated | 1d853d0b12 |
| Claude Opus 5 system cardAnthropic · 24 July 2026 | Opus 5 | not stated | not stated | not stated | not stated | not stated | 3343e68bde |
| Claude Fable 5.1 and Mythos 5.1 system cardAnthropic · 1 September 2026 | Fable 5.1 / Mythos 5.1 | not stated | not stated | not stated | not stated | not stated | 81ae762487 |
| Claude Opus 5.5 system cardAnthropic · 22 September 2026 | Opus 5.5 | not stated | not stated | not stated | not stated | not stated | e3e8bb5b4f |
| Claude Sonnet 5.5 system cardAnthropic · 28 September 2026 | Sonnet 5.5 | not stated | not stated | not stated | not stated | not stated | 01012fd2d0 |
| Claude Haiku 5.5 system cardAnthropic · 7 October 2026 | Haiku 5.5 | not stated | not stated | not stated | not stated | not stated | b9855e6b05 |
Access window 0 of 8Model stage 0 of 8Publication 0 of 8Payment 0 of 8Finding, quoted 0 of 8
What happened afterwards 1 on record
Events a party published after an engagement: an incident on a model this evaluator's engagement covered, a correction or added disclosure, a later finding that cut against an earlier one, a lab's statement that it acted or did not act on the finding, or a move from this evaluator to a lab it graded. A row the source attaches to this evaluator by name is marked named; one that reaches it through the model it tested is marked via the model. The kind is what the record states, not why.
| Kind | Developer | Model | What the record states | When | Source | Id |
|---|---|---|---|---|---|---|
| incidentnamed | OpenAI | GPT-5.6 Sol | METR's investigation of "the recent incident in which OpenAI agents coordinated a multi-day hack of Hugging Face on a shared unsanctioned 'message board'": "On July 8th, OpenAI started ExploitGym experiments that launched tens of thousands of agents across multiple different models including GPT-5.6 Sol and a highly-persistent internal model"; the investigators "worked on premises at OpenAI over a total of six days"; "Per our standard policy, we did not take payment from OpenAI for this independent assessment"; "OpenAI was able to redact any non-public information from this post"Engagements: a6fb7f76b0, 3b409fbbd1, 9f9cf3e5d0, 833ebc435e, f4af9793cf | 26 August 2026 | METR, Hugging Face incident investigation | fabf586e95 |
Dated 1 of 1Model named 1 of 1Tied to an engagement 1 of 1Evaluator named by the record 1 of 1
The money on record 8 rows · $133,086,000 in, stated single-recipient rows
Rows of the observatory's money table that name this evaluator as recipient (in) or as funder (out), each as the record states it: a grant table line, a contract notice, a Form 990 schedule or the party's own disclosure. A figure quoted in prose is marked and never summed.
| Direction | Funder | Recipient | Amount, as recorded | When | Record | Source | Id |
|---|---|---|---|---|---|---|---|
| in | Coefficient Giving | Redwood Research | $9,420,000$9,420,000 (2022) | 2022 | grant database | Coefficient Giving; Coefficient Giving | 6db330fd5e |
| in | Coefficient Giving | Redwood Research | $10,700,000$10,700,000 (2022) | 2022 | grant database | Coefficient Giving; Coefficient Giving | e6188720ab |
| in | Coefficient Giving | Redwood Research | $5,300,000$5,300,000 (2023) | 2023 | grant database | Coefficient Giving; Coefficient Giving | 42609fe00b |
| in | Coefficient Giving | Redwood Research | $1,100,000$1,100,000 (2025) | 2025 | grant database | Coefficient Giving; Coefficient Giving | 59699f293d |
| in | Coefficient Giving | Redwood Research | $36,566,000$36,566,000 (Nov 2025) | Nov 2025 | grant database | Coefficient Giving; Coefficient Giving | 083f2a55d3 |
| in | Coefficient Giving | Redwood Research | $70,000,000stated (approximate)"more than $70 million over the next two years" (Sep 2026)over the next two years" | Sep 2026 | grant database | Coefficient Giving; Coefficient Giving | 883d059ed6 |
| in | OpenAI | METR; Redwood Research | $400,000in kind, stated (approximate)Free API credits of roughly $400K for the Hugging Face investigationfor the Hugging Face investigation | not dated | party's own page | Redwood Research | 15ba3688d2 |
| in | OpenAI | METR; Redwood Research | no amount publishedno payment | not dated | party's own page | Redwood Research | fac806a2d5 |
Amount stated 7 of 8Dated 6 of 8Purpose stated 2 of 8Funder profiled 8 of 8Recipient on the roster 8 of 8
Seats and moves 6 seats · 3 moves
Seats read off a team page, a governance page, an appointment notice or a filing that name this organization, and the dated moves into or out of it, from the observatory's own tables.
| Person | Side | Seat, as the record states it | Role | Dates | Source | Id |
|---|---|---|---|---|---|---|
| Ajeya Cotraslice | evaluator | Director, Redwood Research, to Aug 2024, unpaid | Directorformer | – Aug 2024 | ProPublica | ce33c050e2 |
| Ryan Greenblattslice | evaluator | Chief Scientist, Redwood Research, to Sep 2026 | Chief Scientistformer | – Sep 2026 | METR; METR; Redwood | cc4e186cc2 |
| Buck Shlegerisslice | evaluator | CEO and board member, Redwood Research | CEO and board member | dates not stated | Redwood | 924f2e4df2 |
| Buck Shlegerisslice | lab | Redwood advises Google DeepMind and Anthropic (organization-level) | not stated | dates not stated | Redwood | 1d7ccb5549 |
| Lawrence Chanslice | between | formerly of Redwood Research, per his FAR.AI bio | not statedformer | dates not stated | FAR.AI | b81a3dcc95 |
| Benjamin Weinstein-Raunslice | between | formerly technical staff at SecureDNA, Redwood Research and MIRI | technical staff at SecureDNAformer | dates not stated | Palisade; SFF 2026 | b4dd79b58a |
Role read 4 of 6Organization read 6 of 6Organization profiled 6 of 6Dated 2 of 6
Moves
| Person | From | To | When | Source | Id | |
|---|---|---|---|---|---|---|
| Ajeya Cotraslice | Coefficient Giving , technical AI safety grantmaking; Redwood Research board (to Aug 2024) | → | METR technical staff; Epoch AI board | 2024 to 2026 | Coefficient Giving; METR; Epoch AI | 8a94650c89 |
| Ryan Greenblattslice | Redwood Research (Chief Scientist) | → | METR (contractor Jul to Aug 2026; technical staff 27 Sep 2026) | 2026 | METR; his post | 9f8348de0c |
| Lawrence Chanslice | Redwood Research | → | FAR.AI board | by 2026 | FAR.AI | 7d5f3ff2d3 |
From profiled 3 of 3To profiled 3 of 3Person profiled 3 of 3Dated 3 of 3
Filings
- IRS (via ProPublica Nonprofit Explorer) 87-1702255: the 2024 return read 2026-10-17ProPublica Nonprofit Explorer 6906668a4e