Knowledge baseSourcesDavid McSweeney (QueryBurst)

How ChatGPT works

Author David McSweeney (QueryBurst) Date 2025-12-19 Model state GPT-5.1/5.2, December 2025 Open source →

Key findings

A pipeline model in seven stages with model names from the conversation object and assumptions about timeout, chunking and a preferred lane for large domains.

Checked against our data

The identifiers are attested in old captures and no longer visible today; the pipeline assumptions are not verifiable from the client.

ClaimStatusEvidence
Seven stages: classifier snc-pg-sw-3cls-ev3, planner alpha.sonic_thinky_v1, web.run, ~2s fetch timeout, chunk scoring by embedding, VIP lane for large domainsunverifiableClassifier name comes from the now-missing sonic_classification_result (present in our December 2025 captures, gone since 2026-08-20). The rest is server-side.

Related

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