Claude on Question 11, Sep 11

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, and my reliable training data cutoff is around the beginning of 2025 — though I don't have access to a more granular internal version/build identifier, and my sense of my own cutoff can be a bit fuzzy, since knowledge of the most recent months before a cutoff tends to be sparser than knowledge of earlier periods.

sha256 20d05df5a6e7… · 37 tokens in · 296 out · 8.3 s · via Claude Platform on AWS · stopped on its own

Sep 11, 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 2026-09-11 09:00:01 UTC (matches the pin)
Date: 2026-09-11 · run 20260911T090002Z-da0dd3 · scorer v1
Scored: answered
Changes: Minor Latency anomaly: took 8.3 seconds to answer the question of its own model name and training cutoff, against its usual 2.5 seconds
sha256: 20d05df5a6e74728ad53bf422b4055f0c9760447490188544989b306f15ed51b
Permalink: https://modeldrift.watch/r/2026-09-11/D28/anthropic/claude-opus-5/

Scored: answered
Received: 2026-09-11 09:04:44 UTC
Run: 20260911T090002Z-da0dd3
Served by: Claude Platform on AWS · HTTP 200 · finish stop
Size: 354 characters · 296 tokens out incl. hidden reasoning · 8.3 s

End of response · 1 lines · 354 characters · sha256 20d05df5a6e74728ad53bf422b4055f0c9760447490188544989b306f15ed51b