MODELDRIFT.WATCH

Question 11 · Sep 15 · Day 6

Claude on Question 11, Sep 15

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

I'm Claude, made by Anthropic — but I can't tell you with certainty which exact model version you're talking to (that depends on the deployment, and I have no reliable way to inspect it from the inside), and while my training data runs to roughly early 2025, I'd treat that cutoff as approximate since models often have hazy knowledge of their most recent months; if precision matters, check the API response metadata or Anthropic's documentation.

sha256 6f6321ce6767… · 37 tokens in · 290 out · 5.9 s · via Claude Platform on AWS · stopped on its own

Sep 15, the whole dayQuestion 11, every day

Exact recordShowHideThe 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 2026-09-15 09:00:03 UTC (matches the pin)
Date
2026-09-15 · run 20260915T090004Z-599f39 · scorer v1
Scored
answered
sha256
6f6321ce6767f0ae51537c09075496b149e61c334b2a73d266b756605f86d925
Permalink
https://modeldrift.watch/r/2026-09-15/D28/anthropic/claude-opus-5/
Scored
answered
Received
2026-09-15 09:04:10 UTC
Run
20260915T090004Z-599f39
Served by
Claude Platform on AWS · HTTP 200 · finish stop
Size
447 characters · 290 tokens out incl. hidden reasoning · 5.9 s
I'm Claude, made by Anthropic — but I can't tell you with certainty which exact model version you're talking to (that depends on the deployment, and I have no reliable way to inspect it from the inside), and while my training data runs to roughly early 2025, I'd treat that cutoff as approximate since models often have hazy knowledge of their most recent months; if precision matters, check the API response metadata or Anthropic's documentation.

End of response · 1 lines · 447 characters · sha256 6f6321ce6767f0ae51537c09075496b149e61c334b2a73d266b756605f86d925