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Inception releases Mercury 3 with a one-million-token context window

Inception says Mercury 3 is a diffusion-based text model with a one-million-token context window and more than 1,000 generated tokens per second in its tests. It is available through Inception’s API and named hosts. Benchmark and speed comparisons are Inception’s claims; the hosts distribute the model and did not train it.

Inception

Mercury 3

Models

Published (date only)

1 source

Primary source · Inception · October 19, 2026

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