Inception: Mercury 2

inception/mercury-2 · InceptionUnmeasurable
Declared family
Unknown
Evidence confidence
Unknown
Declared tokenizer tag
Other
Entered catalogue
4 March 2026
Last tested
Not yet measured
Measurement
Unmeasurable: baseline overhead drifts between calls

Evidence stack

Signals of different kinds, weighed together
SignalResultReference
Tokenizer signatureNot measured
API surfaceNo other entry shares this exact contractapi_d34d4a9e
Context and output128,000 context · 50,000 max outputdeclared
Reasoning contractOptional · efforts high, medium, low, none · default mediumdeclared
Serving providers observedNone recorded yet

Declared record

What the catalogue claims about this model

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...

Modalities
text->text
Declared tokenizer
Other
Prompt price
$0.25 / M tokens
Completion price
$0.75 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetool_choicetools

defaults: {"temperature":0.75,"top_p":null,"top_k":null,"frequency_penalty":null,"presence_penalty":null,"repetition_penalty":null}

Catalogue entry

History

Every observation, kept as taken
  • 4 March 2026Enters the OpenRouter catalogue with no declared family.

Cite this page as the evidence record for Inception: Mercury 2: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings. The raw data behind every figure is on the data page.