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Inception Mercury

Diffusion-based LLMs that generate many tokens in parallel for very low latency; Mercury 3 runs at 1,000+ tokens per second with a 1M-token context.

Visit inceptionlabs.ai ↗
Our rating
★ 4.1 / 5 preliminary
Pricing
Paid · Pay as you go
Category
LLM API
For
Builder
Last updated
Oct 21, 2026

💲 Mercury 3: $0.20/M input, $0.70/M output; 50% off at launch ($0.10/$0.35); cached input 90% off. Source: inceptionlabs.ai (checked Oct 21, 2026).

Pros & cons

👍 Pros

  • Very fast (about 1,000 tokens/sec) for latency-sensitive agents and voice
  • Cheap per-token pricing
  • 1M-token context window

👎 Cons

  • Benchmark claims are self-reported
  • Positioned against speed-tier models, not top frontier models

Latest release

Oct 19, 2026

Mercury 3

Largest diffusion LLM to date (40x Mercury 1), claimed on par with GPT-6 Luna and Claude Haiku 5.5 while 4-8x faster, with 1M context and launch pricing of $0.10/$0.35 per million tokens. Source ↗

Ranked in

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