Foundation Model Pricing Monitor

A paid-model pricing dashboard built from OpenRouter model metadata, focused on prompt, completion, request, and image costs while excluding free models.

April 2, 2026 · 1 min
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The Price of Explanation: When AI Should Stay Silent

Explanation is not free. That sounds obvious until one watches an AI system in production. A model predicts. A user asks why. The platform dutifully runs SHAP, LIME, saliency maps, or some carefully branded interpretability module, then presents a ranked list of “important” features with the solemn confidence of a consultant who has just discovered a bar chart. ...

April 1, 2026 · 21 min · Zelina
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Explaining the Explainers: Why Faithful XAI for LLMs Finally Needs a Benchmark

Hiring. A candidate writes a personal statement. A screening model gives a score. A manager asks the AI system why. The explanation says work experience mattered most, education came next, and demographic variables barely moved the decision. Everyone relaxes, because the explanation sounds reasonable. That is the dangerous part. A reasonable explanation is not necessarily a faithful explanation. A counterfactual edit that looks plausible is not necessarily a causal counterfactual. And a model that appears insensitive to demographic concepts may not be “fair”; it may simply have learned, or been aligned, to suppress visible sensitivity in the narrow setting being tested. ...

January 17, 2026 · 15 min · Zelina
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Counterfactuals, Concepts, and Causality: XAI Finally Gets Its Act Together

Explanations should answer the question people actually ask Audit meeting. A model has made a decision. Someone projects a heatmap. The highlighted pixels are around a chin, an eye, a forehead, or some other facial region that looks important because the model says it is important. Everyone nods carefully. Nobody is much wiser. The model has technically been “explained,” in the same way a smoke alarm explains fire by making noise. ...

December 3, 2025 · 21 min · Zelina

Grok-1

An open-weight language model released by xAI (Elon Musk’s AI company), intended for research and analysis, with performance comparable to top-tier 2023 models.

1 min

Grok-2

The next-generation model from xAI, built on a new architecture and fully integrated into X (formerly Twitter) as part of Elon Musk’s AI assistant efforts.

1 min