x-ai

18 models, with 34 monitored endpoints (0 actively tracked, 34 no longer) across 1 provider. 2 of them show at least one detected change — the model version is nominally fixed, so the movement is in how it is served.

18
Models
34
Monitored endpoints
0
Actively tracked
2
Changes total
1
Providers

Models

Model Monitored endpoints Providers Changes Endpoints changed Last change
grok-4.5 retired
4 retired
4 1 1 1/4 2026-08-26
grok-4 retired
1 retired
1 1 1 1/1 2025-09-02
grok-4.20 retired
4 retired
4 1 — 0/4 —
grok-4.3 retired
4 retired
4 1 — 0/4 —
grok-4.6 retired
4 retired · 2 too expensive
4 1 — 0/4 —
grok-build-0.1 retired
4 retired
4 1 — 0/4 —
grok-3 retired
2 retired
2 1 — 0/2 —
grok-3-beta retired
2 retired
2 1 — 0/2 —
grok-3-mini retired
2 retired
2 1 — 0/2 —
grok-3-mini-beta retired
2 retired
2 1 — 0/2 —
grok-2-1212 retired
1 retired
1 1 — 0/1 —
grok-2-vision-1212 retired
1 retired
1 1 — 0/1 —
grok-beta retired
1 retired
1 1 — 0/1 —
grok-code-fast-1 retired
1 retired
1 1 — 0/1 —
grok-vision-beta retired
1 retired
1 1 — 0/1 —
grok-4.20-multi-agent too expensive
4 too expensive
0 0 — 0/0 —
grok-4.3:batch untrackable
1 untrackable
0 0 — 0/0 —
grok-4.7 too expensive
5 too expensive
0 0 — 0/0 —
18 models · monitored since 2025-06-25

Timothée Chauvin, Erwan Le Merrer, François Taïani, Gilles Tredan (2026), "Log Probability Tracking of LLM APIs". ICLR 2026. https://arxiv.org/abs/2512.03816

Timothée Chauvin, Clément Lalanne, Erwan Le Merrer, Jean-Michel Loubes, François Taïani, Gilles Tredan (2026), "Token-Efficient Change Detection in LLM APIs". ICML 2026. https://arxiv.org/abs/2602.11083

@inproceedings{
chauvin2026log,
title={Log Probability Tracking of {LLM} {API}s},
author={Timothee Chauvin and Erwan Le Merrer and Francois Taiani and Gilles Tredan},
booktitle={The Fourteenth International Conference on Learning Representations},
year={2026},
url={https://openreview.net/forum?id=hFxivbAgVP}
}

@inproceedings{
chauvin2026tokenefficient,
title={Token-Efficient Change Detection in {LLM} {API}s},
author={Timothee Chauvin and Cl{\'e}ment Lalanne and Erwan Le Merrer and Jean-Michel Loubes and Francois Taiani and Gilles Tredan},
booktitle={Forty-third International Conference on Machine Learning},
year={2026},
url={https://openreview.net/forum?id=7cMlZZYZT0}
}