by Inception

Inception: Mercury 2.

text open weights 128K ctx
Cheapest input
$0.25/M
on OpenRouter
Cheapest output
$0.75/M
on OpenRouter
Fastest
337 tok/s
on OpenRouter
Hosted equiv.
~$0.27/hr
@ 100 tok/s on OpenRouter

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, achieving...

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.25 $0.75 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 336.8 1446 ms
FAQ

Frequently asked.

How do I run Inception: Mercury 2?
Inception: Mercury 2 is open-weight, so you can self-host on rented GPUs. See the Run It Yourself tab for GPU configurations + cost estimates, or use one of the hosted inference providers listed on this page.
Where can I access Inception: Mercury 2?
Inception: Mercury 2 is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Inception: Mercury 2?
API pricing starts at $0.25/M input tokens and $0.75/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Inception: Mercury 2 open-source or proprietary?
Inception: Mercury 2 is open-weight under the license. You can download and self-host it.