Search Write for us Sign in
OpenAI Daily News

Independent news about OpenAI and ChatGPT. Not an OpenAI publication.

Wednesday, October 21, 2026Sources checked

Models & Research

Mercury 3 claims to outperform GPT-6 Luna, Claude Haiku 5.5 at 8 times the speed

Interesting Engineering

Mercury 3 claims to outperform GPT-6 Luna, Claude Haiku 5.5 at 8 times the speed

Picture: Interesting Engineering

California-based AI research and product company Inception has unveiled Mercury 3, its latest diffusion language model, claiming it outperforms speed-optimized rivals GPT-6 Luna and Claude Haiku 5.5 on a range of benchmarks while running four to eight times faster. The new model generates more than 1,000 tokens per second on widely available NVIDIA GPUs and supports a context window of 1 million tokens, allowing it to process substantially larger amounts of information in a single request. According to Inception, Mercury 3 is more than 40 times larger than its first-generation model, Mercury 1, while maintaining comparable processing speeds. The company says the results demonstrate that diffusion-based language models can become more capable without sacrificing the speed advantages of their underlying architecture.

This report was first published by Interesting Engineering. What you see here is a brief excerpt. The full text is theirs.

Continue reading at Interesting Engineering

Pass it on X Facebook WhatsApp

More reports on this

Latest in Models & Research

Everything in Models & Research

API & Codex

Business

  1. OpenAI models are coming to Google Cloud