Knowledge base›Models›gpt-5-6 (GPT-5.6 Sol)

gpt-5-6 (GPT-5.6 Sol) model/gpt-5-6

Modelsactive first seen 20 Aug 2026 last seen 6 Oct 2026Occurrence 26 of 33 runs on 6 Oct 2026 · instant

What it is

The model serving the measurement account. routing.model_slug is gpt-5-6 in standard mode and gpt-5-6-thinking in thinking mode; the UI calls it „GPT-5.6 Sol". Measured since 20 Aug 2026. On 21 Aug isolated gpt-5-5 answers still occurred, from 22 Aug only 5.6.

For visibility

The model is the single biggest context factor of every measurement. Search decision, fan-out phrasing and the format of the web.run calls hang on the generation — the pipe syntax, for instance, came back with a particular model phase. That is why the model_slug is recorded in every run's context snapshot and a change is tracked as a baseline event.

Change history

23 Aug 2026revertedModel change gpt-5-5 → gpt-5-6 on 2 prompts
24 Aug 2026revertedModel change gpt-5-6 → gpt-5-5 on 2 prompts
24 Aug 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 2 prompts
25 Aug 2026confirmedModel change gpt-5-5 → gpt-5-6 on 1 prompt
25 Aug 2026confirmedModel change gpt-5-6 → gpt-5-5 on 1 prompt
25 Aug 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
26 Aug 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
27 Aug 2026revertedModel change gpt-5-6-thinking → gpt-5-6 on 4 prompts
28 Aug 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 4 prompts
7 Sept 2026revertedModel change gpt-5-6-thinking → gpt-5-6 on 4 prompts
7 Sept 2026revertedModel change gpt-5-5 → gpt-5-6 on 2 prompts
8 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 4 prompts
9 Sept 2026revertedModel change gpt-5-6 → gpt-5-5 on 2 prompts
12 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
12 Sept 2026revertedModel change gpt-5-6 → gpt-5-5 on 1 prompt
12 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
10 Sept 2026revertedModel change gpt-5-5 → gpt-5-6 on 1 prompt
10 Sept 2026revertedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
12 Sept 2026revertedModel change gpt-5-6 → gpt-5-5 on 1 prompt
11 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
11 Sept 2026revertedModel change gpt-5-5 → gpt-5-6 on 1 prompt
11 Sept 2026revertedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
13 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
13 Sept 2026confirmedModel change gpt-5-5 → gpt-5-6 on 2 prompts
13 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 2 prompts
14 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
15 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
15 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt
17 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 2 prompts
18 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 2 prompts
20 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 2 prompts
21 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 2 prompts
23 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 2 prompts
25 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 2 prompts
27 Sept 2026confirmedModel change gpt-5-6-thinking → gpt-5-6 on 1 prompt
28 Sept 2026revertedModel change gpt-5-6 → gpt-5-6-thinking on 1 prompt

Open

Related

Search decision web.run syntax (pipe format) Query fan-out