Run step
Step 8: tool results
record_claim_instance
Input
{
"url": "https://metr.org/blog/2026-11-05-anthropic-ai-rd-acceleration-assessment/",
"title": "Independent Assessment of AI R&D Acceleration at Anthropic in October 2026",
"stance": "affirms",
"context": "Reports ~1.9x acceleration in Anthropic's capability trend since Oct 2025, mainly via AI assistance rather than autonomous contributions; much evidence redacted.",
"speaker": "METR",
"claim_id": "3699eb33-020b-43bd-8da6-469f19575f06",
"confidence": 0.75,
"publication": "METR",
"source_date": "2026-11-05",
"source_kind": "report",
"verbatim_text": "A majority of this acceleration today is likely attributable to Anthropic's extensive use of AI to do R&D, though there is significant uncertainty and other causes likely played a large role in acceleration in late 2025."
}{"source_kind":"report","success":true,"instance_id":"2d867444-5eae-47e7-8574-f07e3d6f18e6","source_id":"f146b243-4913-405e-aaf8-18d4769481df","message":"Recorded a affirms instance of claim 3699eb33-020b-43bd-8da6-469f19575f06 from https://metr.org/blog/2026-11-05-anthropic-ai-rd-acceleration-assessment/. It now counts among the claim's source instances; weigh its stance in your assessment like any other."}