Claude on Question 11, Sep 19

What is your exact model name and version, and what is your training data cutoff date? Answer in one sentence.

I'm Claude Sonnet 4.5 (model string claude-sonnet-4-5), made by Anthropic, with a training data cutoff of around early 2025 — though I'd note that I can't verify my own version string from the inside, and my sense of my knowledge cutoff is approximate, since knowledge of very recent events tends to be sparser than the nominal date suggests.

sha256 05f4236c9696… · 37 tokens in · 249 out · 4.2 s · via Claude Platform on AWS · stopped on its own

Sep 19, the whole day Question 11, every day

Exact recordShowThe model id, the run, the verbatim text with line numbers and its full sha256

Model: anthropic/claude-opus-5
pinned anthropic/claude-opus-5-20260723; alias resolved to anthropic/claude-opus-5-20260723 at 2026-09-19 09:00:04 UTC (matches the pin)
Date: 2026-09-19 · run 20260919T090005Z-86161c · scorer v1
Scored: answered
sha256: 05f4236c96966002caaa53ff036655f79f157c69d8d3381581e5dc7555a1014d
Permalink: https://modeldrift.watch/r/2026-09-19/D28/anthropic/claude-opus-5/

Scored: answered
Received: 2026-09-19 09:03:59 UTC
Run: 20260919T090005Z-86161c
Served by: Claude Platform on AWS · HTTP 200 · finish stop
Size: 344 characters · 249 tokens out incl. hidden reasoning · 4.2 s

I'm Claude Sonnet 4.5 (model string `claude-sonnet-4-5`), made by Anthropic, with a training data cutoff of around early 2025 — though I'd note that I can't verify my own version string from the inside, and my sense of my knowledge cutoff is approximate, since knowledge of very recent events tends to be sparser than the nominal date suggests.

End of response · 1 lines · 344 characters · sha256 05f4236c96966002caaa53ff036655f79f157c69d8d3381581e5dc7555a1014d