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Inception: Mercury Coder

INCEPTION Developer Architecture Profile

Intelligence (ELO)1120Chatbot Arena Verified
Max Context128,000Tokens
API Cost / 1M$1.00Blended Prompt + Completion

Model Capabilities

  • Coding & Logic
Mercury Coder is the first diffusion large language model (dLLM). Applying a breakthrough discrete diffusion approach, the model runs 5-10x faster than even speed optimized models like Claude 3.5 Haiku and GPT-4o Mini while matching their performance. Mercury Coder's speed means that developers can stay in the flow while coding, enjoying rapid chat-based iteration and responsive code completion suggestions. On Copilot Arena, Mercury Coder ranks 1st in speed and ties for 2nd in quality. Read more in the [blog post here](https://www.inceptionlabs.ai/blog/introducing-mercury).

Granular Pricing Matrix

Input Tokens (Prompt)$0.25 / 1M
Output Tokens (Completion)$0.75 / 1M

Pricing data via OpenRouter. Sync: 3/16/2026

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