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Character.ai: Kaiju Medium

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kaiju-medium

Kaiju Medium is Character.ai’s proprietary AI model, released Nov 7, 2025.

Context
—
Input
— / 1M
Output
— / 1M
Released
Nov 7, 2025
Modalities

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Kaiju Medium lands among all models tracked on Model Beat.

No standardized benchmark scores from Epoch AI yet — common for very recent, image, or niche models. Scores appear here once published.

Compare Kaiju Medium with

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Frequently asked questions

What is Kaiju Medium?

Kaiju Medium is an AI model, from Character.ai, released Nov 7, 2025.

Who created Kaiju Medium?

Kaiju Medium is an AI model developed by Character.ai, released Nov 7, 2025.

Is Kaiju Medium open source?

Kaiju Medium is a proprietary model (Hosted access (no API)), available through its provider's API rather than as a downloadable open-weight model.

Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Aug 5, 2026.