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Mercury 2

InceptionProprietary

Description

Mercury 2 is the fastest reasoning LLM, built on diffusion-based language model (dLLM) architecture. Instead of generating text token-by-token, it refines multiple text blocks simultaneously, achieving over 1,000 tokens per second on Nvidia Blackwell GPUs — 5x faster than leading speed-optimized LLMs. Supports tool usage and JSON output with 128K context window.

Release Date
2026-02-20
Parameters
—
Context Length
128K
Modalities
text

Capability Radar

15
general
32
coding
77
reasoning
51
science
50
agents
0
multimodal

Rankings

Domain#RankScoreSource
Code Ranking363
41.0
AA
General Ranking250
48.0
AA
Science249
52.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Chat

Tau2 Airline53.0%SR

Instruction Following

IFBench71.0%SR

Math

AIME 202591.1%SR

Reasoning

GPQANYU + Cohere + Anthropic (2023)74.0%SR
LiveCodeBench67.0%SR
SciCode38.0%SR

AA Evaluation Indices

(Artificial Analysis)
Gpqa(NYU + Cohere + Anthropic (2023))
77.0
Tau2(Sierra + U Toronto + Vector Institute (2025))
70.8
Ifbench(Google Research (2023))
69.8
Lcr(Artificial Analysis)
43.7
Scicode(UIUC + Argonne National Lab (2024))
37.7
Coding Index(Artificial Analysis)
31.1
Terminalbench V2 1
27.3
Terminalbench Hard(Stanford × Laude Institute (2026))
26.5
Hle(Center for AI Safety + Scale AI (2025))
17.1
Intelligence Index(Artificial Analysis)
13.8
Tau Banking
9.5
Terminalbench V4 0
0.0

LLM Stats Category Scores

(LLM Stats (zeroeval))
Instruction Following
70
General
70
Math
60
Physics
60
Reasoning
60
Biology
60
Chemistry
60
Chat
50
Code
50
Communication
50
Tool Calling
50

Pricing

Input Price$0.25 / 1M tokens
Output Price$0.75 / 1M tokens
Blended Price (3:1)$0.375 / 1M tokens
Cache Read Price$0.025 / 1M tokens

Speed

Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s

Provider Price Ranking

Provider Price Ranking

6 providers

Cheapest: InceptionMost Expensive: Venice AI
ProviderInputOutput
1InceptionCheapest
$0
$0
2NanoGPT
$0.25
$0.75
3OpenRouter
$0.25
$0.75
4Kilo Gateway
$0.25
$0.75
5Vercel AI Gateway
$0.25
$0.75
6Venice AI
$0.3125
$0.9375

Compare pricing across different API providers for this model.

External Sources

LLM StatsArtificial Analysis