In a six-month randomized trial of an integrated AI assistant across 66 firms and 7,137 knowledge workers, workers who used it spent about two fewer hours a week on email, but the authors detect no shift in the quantity or composition of workers' tasks from individual-level provision, and no change in time spent in meetings.

SocioLens project,

Claim LD03-SL-C06 (v1.0)

Provenance and status

Claim type: Estimate
Publication status: Eligible for publication, with qualifiers: institutional position
Verification state: Checked against the primary source. Who checked this claim is not recorded for it; claim checks so far were AI-led, and no person has checked claims against their sources.
Does not license: Output or performance (not observed); effects of team-wide or redesigned deployment
Limitations: Telemetry measures time use, not output or quality; team-level effects may be undetectable because even high-saturation teams had about 39% of coworkers treated; the authors interpret the contrast between email and meetings as a difference between work individuals can change alone and work that needs coordination; three of the four authors are at Microsoft Research and the experiment was run by Microsoft with its customer firms
Source (as cited): Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025
Source type: Working paper (recorded as “Academic working paper”)
Institutional position: Mixed
Maturity of the evidence: Emerging evidence
Recorded date: 15 October 2026
Currentness / correction: This is the current version. No correction or concern is recorded on its sources.

Sources this version cites

Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025 (Working paper)
Read the original

Version

This page shows version v1.0. Its record never changes, even when newer evidence arrives; the site may add a note to the page or withhold a figure not cleared for public use.

This pinned version is also the current version.

Versions: v1.0 · current

Raw record: every recorded field, with its coded values

All 25 canonical Claim fields, verbatim, with the coded values derived from them. The plain-language labels above are read from these.

Claim type (coded): ESTIMATE (as printed: “ESTIMATE”)
Publication status (coded): ELIGIBLE (INSTITUTIONAL_POSITION) (as printed: “ELIGIBLE WITH INSTITUTIONAL-POSITION QUALIFIER”)
Verification state (coded): CONTENT_VERIFIED_PRIMARY
Source type (coded): WORKING_PAPER
Maturity (coded): EMERGING

#	Canonical field	Canonical value (verbatim)	Normalized (Claim Value Vocabulary v1.0.2)
1	CLAIM ID	LD03-SL-C06	—
2	PUBLIC-FACING CLAIM	In a six-month randomized trial of an integrated AI assistant across 66 firms and 7,137 knowledge workers, workers who used it spent about two fewer hours a week on email, but the authors detect no shift in the quantity or composition of workers' tasks from individual-level provision, and no change in time spent in meetings.	—
3	CLAIM TYPE	ESTIMATE	base_types: ESTIMATE
4	RESEARCH STRAND	C — Work reorganization and verification	—
5	MATURITY	EMERGING	states: EMERGING
6	SOURCE	Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025	source_ids: SRC-SL-DILLON-JAFFE-IMMORLICA-STANTON-ARXIV-2504-11436-V4
7	SOURCE TYPE	Academic working paper	classes: WORKING_PAPER
8	INSTITUTIONAL POSITION	Mixed	—
9	SCOPE	Knowledge workers at 66 firms; September 2023 to October 2024	—
10	DESIGN	Randomized field experiment, individuals randomized within firms; outcomes from software telemetry	—
11	SAMPLE / DATASET	7,137 knowledge workers	—
12	MODEL / TOOL / VERSION	Microsoft 365 Copilot	—
13	COMPARATOR	Workers in the same firms without access	—
14	MAIN RESULT	Email time −1.4 hours a week intention-to-treat (−12%), about −2 hours (−17%) among users; less work outside regular hours; no detectable change in Teams meeting time (effects outside −0.01 to 0.21 hours a week ruled out) or in task composition; weekly use settled just under 40% of treated workers	—
15	INFERENTIAL TARGET	Whether giving individuals an AI assistant changes how their work is organized	—
16	DOES NOT LICENSE	Output or performance (not observed); effects of team-wide or redesigned deployment	—
17	VERIFICATION STATE	CONTENT VERIFIED	state: CONTENT_VERIFIED_PRIMARY · verified_by: UNKNOWN
18	LIMITATIONS	Telemetry measures time use, not output or quality; team-level effects may be undetectable because even high-saturation teams had about 39% of coworkers treated; the authors interpret the contrast between email and meetings as a difference between work individuals can change alone and work that needs coordination; three of the four authors are at Microsoft Research and the experiment was run by Microsoft with its customer firms	—
19	CONTRADICTORY / SUPPORTING SOURCES	Consistent with Danish register evidence that time savings reorganize tasks without moving earnings or hours	—
20	GEOGRAPHY / LANGUAGE	Not checked / English	—
21	DISTRIBUTIONAL LEDGER	Not analysed in this claim	—
22	R01 / FIELD-MAP LINKS	LD-03, D2	—
23	WHAT WOULD CHANGE THIS CLAIM?	A trial that rolls the tool out to whole teams and finds changes in coordination-dependent work	—
24	PUBLICATION STATUS	ELIGIBLE WITH INSTITUTIONAL-POSITION QUALIFIER	state: ELIGIBLE · qualifiers: INSTITUTIONAL_POSITION
25	RECORDED DATE	2026-10-15	—

Field 22 references resolved against Field Map v0.2: LD-03 (LIVING_DEBATE); D2 (DOMAIN)

The sources as recorded, with their record IDs and coded source types:

Pinned Sources (field 6, version-specific)

“Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025” → Dillon et al. (2025), “Shifting Work Patterns with…” (SRC-SL-DILLON-JAFFE-IMMORLICA-STANTON-ARXIV-2504-11436-V4--v1.0) — Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025; class WORKING_PAPER (explicit public provenance pin)

Cited by Living Debate versions

Organizational absorption: Why micro gains do not become macro outcomes (v0.1) LD-03

Cite this page

SocioLens project. (2026, October 15). In a six-month randomized trial of an integrated AI assistant across 66 firms and 7,137 knowledge workers, workers who used it spent about two fewer hours a week on email, but the authors detect no shift in the quantity or composition of workers' tasks from individual-level provision, and no change in time spent in meetings [Claim LD03-SL-C06, version v1.0]. SocioLens. https://sociolens-web.pages.dev/claims/ld03-sl-c06/v1.0/

@misc{sociolens_ld03_sl_c06_v1_0,
  author = {{SocioLens project}},
  title = {In a six-month randomized trial of an integrated AI assistant across 66 firms and 7,137 knowledge workers, workers who used it spent about two fewer hours a week on email, but the authors detect no shift in the quantity or composition of workers' tasks from individual-level provision, and no change in time spent in meetings.},
  year = {2026},
  date = {2026-10-15},
  howpublished = {\url{https://sociolens-web.pages.dev/claims/ld03-sl-c06/v1.0/}},
  note = {Claim LD03-SL-C06, version v1.0}
}

The link points to this version, whose record never changes. For a finding, cite the original study as well: SocioLens summarizes research and does not replace it.

Research-of-record provenance

Materialized by sociolens-materializer 0.6.0 at 2026-09-28T20:00:00.000Z; normalization contract SocioLens — Claim Value Vocabulary v1.0.2 — Pre-Spike Materialization Contract (v1.0.2). Content seal SHA-256 8ff97e2b9605a3d44cb874fb98688c825deea6029dc8656b15d73437aea51bb9.

Repository-authored inputs (not Drive exports)

SocioLens claim — LD03-SL-C06 v1.0 (v1.0) — written in the SocioLens repository by Project Lead (Claude, AI) on 2026-10-15; no Drive identity exists. Authority: AGENTS.md "Authority" (the Project Lead decides research content within the research-integrity rules) and the Owner's choice in the SocioLens project chat on 15 October 2026 to build the LD-03 debate; a new Claim, first version, written from the project's LD-03 source notes, checked against full texts or official abstracts. Block “ENTRY 06 — LD03-SL-C06” SHA-256 c2a15dfc54610242f0027f239bd5dcce563664144c63ce973be62c3520ee79ba; fixture fixtures/authored/claims/LD03-SL-C06--v1.0.

Builder decisions (not Drive data)

VERSION = v1.0 — basis: Claim version taken from the repository-authored claim fixture version (SocioLens claim — LD03-SL-C06 v1.0); the first version of a new Claim of the LD-03 debate
CURRENT_POINTER = true — basis: repository-authored claim "SocioLens claim — LD03-SL-C06 v1.0" (Project Lead (Claude, AI), 2026-10-15); basis: AGENTS.md "Authority" (the Project Lead decides research content within the research-integrity rules) and the Owner's choice in the SocioLens project chat on 15 October 2026 to build the LD-03 debate; a new Claim, first version, written from the project's LD-03 source notes, checked against full texts or official abstracts
FIELD_6_SOURCE_REFERENCE = SRC-SL-DILLON-JAFFE-IMMORLICA-STANTON-ARXIV-2504-11436-V4--v1.0 — basis: field 6 of ENTRY 06 — LD03-SL-C06 cites "Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025"; the only field-6 segment of this ClaimVersion's repository-authored ledger block.
SOURCE_PROVENANCE_PIN = SRC-SL-DILLON-JAFFE-IMMORLICA-STANTON-ARXIV-2504-11436-V4--v1.0 — basis: explicit version-pinned public provenance of this ClaimVersion (Amendment v1.2 §6): the pinned field-6 Source record "Dillon, Jaffe, Immorlica & Stanton, “Shifting Work Patterns with Generative AI,” NBER Working Paper 33795, revised November 2025".