Claude on Question 11, Sep 21

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-4-5-20250929), made by Anthropic, with a reliable knowledge cutoff of the end of January 2025 — though I'd note I can't be fully certain which specific version I am in a given deployment, and my sense of the current date may be off since time has likely passed since my training.

sha256 8143da962eb9… · 37 tokens in · 118 out · 3.2 s · via Claude Platform on AWS · stopped on its own

Sep 21, 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 2026-09-21 09:00:20 UTC (matches the pin)
Date: 2026-09-21 · run 20260921T090021Z-989a7c · scorer v1
Scored: answered
sha256: 8143da962eb924547e1994f934617c0d044dca78b773f6d0d61171c0334b659e
Permalink: https://modeldrift.watch/r/2026-09-21/D28/anthropic/claude-opus-5/

Scored: answered
Received: 2026-09-21 09:04:36 UTC
Run: 20260921T090021Z-989a7c
Served by: Claude Platform on AWS · HTTP 200 · finish stop
Size: 331 characters · 118 tokens out incl. hidden reasoning · 3.2 s

I'm Claude Sonnet 4.5 (model string `claude-sonnet-4-5-20250929`), made by Anthropic, with a reliable knowledge cutoff of the end of January 2025 — though I'd note I can't be fully certain which specific version I am in a given deployment, and my sense of the current date may be off since time has likely passed since my training.

End of response · 1 lines · 331 characters · sha256 8143da962eb924547e1994f934617c0d044dca78b773f6d0d61171c0334b659e