Mercury 2

Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produces and refines multiple tokens in parallel, achie

Creator: Inception Labs
Lifecycle: Active
Context: 128.0K
Max output: 50.0K
Released: Mar 4, 2026
Status: unknown

Input: $0.25 / 1M tokens
Output: $0.75 / 1M tokens
Cached read: $0.03 / 1M tokens
Cached write: — / 1M tokens
Batch discount: —%
Source: OpenRouter
Verified: Apr 5, 2026 (High)

Capabilities

Modalities: text→text
Capabilities: reasoningpromptCachingfunctionCallingstructuredOutputs

Official Links

Intro

https://openrouter.ai/inception/mercury-2

Docs

https://openrouter.ai/inception/mercury-2

Pricing

https://openrouter.ai/models

Benchmark Coverage

Benchmark	Version	Score	Date	Source	Notes

Release History

Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
Mercury 2	inception-mercury-2	Active	Mar 4, 2026	—	—	Model available via OpenRouter.

Host Coverage

Host	Type	Context	Pricing Note	Differences
OpenRouter	aggregator	128.0K	$0.25/1M in · $0.75/1M out via OpenRouter	—

Migration Guidance

Change Events

Date	Type	Title	Description	Source
Mar 4, 2026	family_added	Mercury 2 published	Model made available via OpenRouter.	OpenRouter

Other models from Inception Labs

Mercury, Mercury Coder