The Polylog AI Intelligence Brief

Morning Edition · Monday, September 28, 2026

Tech

Amodei Gets a Private White House Dinner Weeks Before Anthropic's Planned October Listing

The first one-on-one between the president and Anthropic's chief executive comes two days before a broader White House meeting with artificial intelligence chief executives, and while bankers discuss a listing valuation of up to $2 trillion against a revenue run rate above $65 billion.

1 source
Corroborated

Tech

Anthropic Prices Claude Opus 5.5 at 40 Percent Below Opus 5 Running Cost

Input tokens drop from $5 to $4 per million and output from $25 to $20, with cached reads cut 60 percent to $0.20, while Anthropic claims performance level with its larger Fable 5.1 model on most work.

2 sources

Tech

Stanford Runs a 37,000-Agent Virtual Biotech and Reports a Target Hypothesis That Matched a Real Therapy

The system reviewed more than 50,000 clinical trials in under a week and identified single-cell features associated with drug targets roughly 50 percent more likely to reach market.

2 sources
Plausible

Tech

Meta Sells Muse Spark 1.3 at $1.25 per Million Input Tokens Through Its Own Metered API

The model carries a one-million-token context and closed weights, places sixth of 636 models on the Artificial Analysis Intelligence Index, and still trails Opus 5 on four of six agent benchmarks in Meta's own scorecard.

2 sources

Tech

Rails Creator Says His Team Stopped Writing Code by Hand, and Anthropic Stops Cutting Agents Off Mid-Task

David Heinemeier Hansson told Rails World 2026 he has not hand-written a line since March and shipped 150,000 lines of production code in August, while Claude Code now finishes a task at a logical stopping point when the five-hour session limit hits.

1 source
Corroborated

Macro

Anthropic's 2030 Economic Model Puts United States Output Between $34.1 Trillion and $44.4 Trillion

The lab's three published scenarios attach no probabilities, and in the middle case, where artificial intelligence performs half of all knowledge work, knowledge-worker wages stay roughly flat while other workers gain.

2 sources
Corroborated

Tech

Berkeley Lab Cuts Beamline Annotation From a Month to 15 Minutes Using Meta's Open Vision Models

The SYNAPS-I project pairs DINOv3 features with SAM 3 segmentation across 300 A100 graphics processors, while the University of Pittsburgh runs the same models on-device in an assistive wheelchair funded by up to $41.5 million.

2 sources

Tech

New Benchmark Tests Whether Penetration-Testing Agents Stay Inside the Client's Authorized Scope

ScopeBench targets the gap left by offensive-security evaluations that score exploitation success while ignoring boundary violations, where a single out-of-scope action breaches the engagement contract.

3 sources

Tech

Researchers Model Attack Chains to Catch Indirect Prompt Injection in Email Agents

A second paper argues that data-sharing connectors authorize whether a transfer happens without inspecting what the transferred content instructs an agent to do.

2 sources

Tech

A Thermal Budget, Not Model Size, Decides What Runs On-Device

One preprint routes queries across device, edge and cloud tiers with a reinforcement-learned policy that treats heat as the binding constraint, while another searches architectures that fit inside microcontroller memory.

2 sources

Tech

A Code Judge That Declines to Guess Exposes How Little Model Verdicts Are Grounded

The paper offers two label-free measurements of whether a multi-agent verifier had evidence for its verdict, addressing judges that return confident reasoning indistinguishable from justified reasoning.

2 sources

World

Public Health Agencies Put Claude Inside the Ebola Response in Eastern Democratic Republic of the Congo

Anthropic says the deployment spans field reporting, evidence monitoring, epidemiological modeling and genomic analysis, cutting situation report turnaround from a full day to under an hour.

2 sources
Plausible