Model Tracker

Chameleon

Chameleon is an AI model made by Meta. Meta released it on 18 June 2024. Its weights are open. Its licence is Chameleon Research License.

In inglese

Released: 18 June 2024 — ai.meta.com, read 16 October 2026
Status: Not confirmed: two readings disagree: ga and retired
Takes: Text, Image — ai.meta.com, read 16 October 2026
Returns: Not confirmed: two readings disagree: text and text, image
Open weights: Yes — github.com, read 16 October 2026
Licence: Chameleon Research License — ai.meta.com, read 16 October 2026
Context window: Not confirmed: The reviewed maker pages do not print a standard context-window figure.
Longest answer: Not confirmed: The reviewed maker pages do not print a standard maximum-output token limit.
Knowledge cutoff: Not confirmed: The reviewed maker pages do not state a knowledge-cutoff date.
API price, input: Not confirmed: The reviewed maker pages describe research checkpoint access, but do not publish a standard API input price per 1,000,000 tokens.
API price, output: Not confirmed: The reviewed maker pages describe research checkpoint access, but do not publish a standard API output price per 1,000,000 tokens.
Where: Downloadable weights — github.com, read 16 October 2026
Parameters: Not confirmed: Chameleon is a model family with multiple published sizes, not one parameter count: Meta's pages identify 7B and 34B variants.
Model card: Not confirmed: two readings disagree: https://huggingface.co/facebook/chameleon-7b and https://arxiv.org/abs/2405.09818

Questions

Meta released Chameleon on 18 June 2024.

Yes: Meta publishes the weights of Chameleon for download.

The licence of Chameleon is Chameleon Research License, as Meta names it.

Sharing new research, models, and datasets from Meta FAIR (read 16 October 2026)
Chameleon license (read 16 October 2026)
chameleon/README.md at main · facebookresearch/chameleon (read 16 October 2026)
Chameleon - a facebook Collection (read 16 October 2026)
facebook/chameleon-7b (read 16 October 2026)