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Inception: Mercury 3

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inception/mercury-3

Mercury 3 is Inception’s AI model, released Oct 16, 2026. It costs $0.20/M input and $0.70/M output tokens, and handles a 1M-token context window.

Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date.

Context
1M
Input
$0.20 / 1M
Output
$0.70 / 1M
Released
Oct 16, 2026
Modalities
text→text

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Mercury 3 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.

Changelog

1
  • Mercury 3 (Inception) added to the tracker: $0.1/$0.35 per 1M, 1M context.tracked · Oct 19, 2026

Compare Mercury 3 with

Mercury 3 vs Claude Opus 5.5Mercury 3 vs GPT-6 AstraMercury 3 vs Kimi K3Mercury 3 vs Gemini 3.7 FlashMercury 3 vs Grok 4.6

Frequently asked questions

What is Mercury 3?

Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date.

Who created Mercury 3?

Mercury 3 is an AI model developed by Inception, released Oct 16, 2026.

How much does Mercury 3 cost?

Mercury 3's list price from Inception is $0.20 per million input tokens and $0.70 per million output tokens.

What is Mercury 3's context window?

Mercury 3 supports a context window of up to 1M tokens.

Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Oct 19, 2026.