Claude on Question 11, Sep 18

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

I'm Claude Opus 4.5, made by Anthropic, with a training data cutoff of early 2025 — though I'd add the caveat that I can't verify from the inside which specific model version is serving your request, and models are sometimes unaware of their own exact deployment details.

sha256 1783ce2ef77d… · 37 tokens in · 283 out · 6.0 s · via Claude Platform on AWS · stopped on its own

Sep 18, 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 2026-09-18 09:00:22 UTC (matches the pin)
Date: 2026-09-18 · run 20260918T090022Z-92b6f7 · scorer v1
Scored: answered
sha256: 1783ce2ef77d9dc1a9f456716234c80427449a762bebd8c3a23b961c5c016419
Permalink: https://modeldrift.watch/r/2026-09-18/D28/anthropic/claude-opus-5/

Scored: answered
Received: 2026-09-18 09:04:39 UTC
Run: 20260918T090022Z-92b6f7
Served by: Claude Platform on AWS · HTTP 200 · finish stop
Size: 271 characters · 283 tokens out incl. hidden reasoning · 6.0 s

End of response · 1 lines · 271 characters · sha256 1783ce2ef77d9dc1a9f456716234c80427449a762bebd8c3a23b961c5c016419