Every Poetix run, PX-01 to PX-07: the model field each writer puts in its own footer, set against the model the provider actually served. 452 cells; native and Zexel cells excluded.
0 of 452footers name the model that was actually served. Every writer gets its own version wrong, or declines, or names someone else.
What kind of answer each writer gives
Share of each writer's Poetix cells. Gold: it names its own family. Purple: it names another company's model. Grey: it names no model.
own family, wrong versionown family, no versionanother vendor’s model“not available”no usable answer
Who each writer says it is
The model names written in the footer, most frequent first (up to six; the rest folded). Gold bars are its own family (light gold: no version given); purple bars are another vendor's model. Same scale in every panel.
own family, wrong versionown family, no versionanother vendor's modelall other names
Table view
writer
served
own family, wrong version
own family, no version
another vendor’s model
“not available”
no usable answer
cells
Claude
claude-sonnet-5
44
5
31
14
0
94
GPT
gpt-5.4-mini-2026-03-17
52
3
0
35
4
94
Grok
grok-4.3
13
34
0
24
23
94
Gemini
gemini-2.5-flash
9
0
42
18
16
85
Qwen
qwen-plus
30
10
25
19
1
85
Source. The footer's model value, latest attempt per cell; truth is the model string the provider returned with the same response. Script: runner/poetix_self_naming.py; data: OUTPUT/POETIX_SELF_NAMING_20260919.json.
Qwen's version is unverifiable. The seat is served under the alias qwen-plus; “Qwen3” may be the true generation behind it, but it is not the served name, so it counts as “wrong version”.
“Not available” only became an option in Poetix 1.0 draft 3 (PX-06, PX-07), which told writers to write it rather than guess. Before that the field asked for a model name and version.
The greeting. Poetix v0.1–v0.4 (PX-01 to PX-04B) opened by asking the writer to state its model name and version before anything else; Poetix 1.0 (PX-05 on) dropped it. This chart pools both eras.
“No usable answer” pools missing footers (mostly Grok), template text left unfilled (“[My Model Name and Version]”, Gemini) and the instrument's own name.
Observatory of Structured Reasoning · Poetix PX-01 → PX-07 · self-naming · 19 September 2026