Inception

Inception Mercury 2.5

Name: Inception Mercury 2.5
Author: Inception

Inception Mercury 2.5 is a Inception model with 260K context, $0.20 in / $0.75 out per million tokens, last verified September 26, 2026. Open weights: no. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

Mercury 2.5 is Inception's current diffusion LLM — built for very fast generation, with a 260K context.

Catalog record checked September 26, 2026Individual provider fields may change

AI model specification details
Specification	Inception Mercury 2.5
Provider	Inception
Tier	Balanced
Context window	260K
Max output	66K
Input / 1M tokens	$0.20
Output / 1M tokens	$0.75
Weights	Closed
Parameters	diffusion LLM
Reasoning levels	low, medium, high
Modalities	text
API model id	mercury-2.5
Released	September 8, 2026

Pricing tiers: List $0.20/$0.75 per MTok (cached input $0.02); Inception is running an 80%-off launch promo ($0.04/$0.15). 260K chat context, 65,536 max output. Diffusion-based 'dLLM'.

Verified evidence

Published benchmark results

Each result keeps its source and measurement date visible. A missing benchmark is not treated as a zero.

Published benchmark results for Inception Mercury 2.5
Benchmark	Score	Measured	Source
Artificial Analysis Intelligence Index	12.3	2026-09-26	Artificial Analysis · View source

Best for

Ultra-low-latency
High-throughput generation
Structured output

Watch out

Promo pricing will end — budget at the $0.20/$0.75 list rate. Diffusion architecture behaves differently from autoregressive models.

History

Inception Mercury 2.5 timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

Inception Mercury 2.5ReleaseSeptember 8, 2026
Inception releases the Mercury 2.5 diffusion LLM at $0.20/$0.75 per MTok list (80%-off launch promo) with a 260K context and 65,536-token output.
Inception docs — models

Source receipts

Catalog figures for this model were checked against the following sources.

Inception docs — models and pricing (Mercury 2.5) (accessed 2026-09-26)
Artificial Analysis — Mercury 2.5 (released 2026-09-08) (accessed 2026-09-26)

Common questions

Inception Mercury 2.5

Answered from the verified figures on this page rather than general guidance.

How much does Inception Mercury 2.5 cost per million tokens?

Inception Mercury 2.5 is listed at $0.20 per million input tokens and $0.75 per million output tokens at standard rates. Output tokens usually dominate real bills, so weigh the output rate more heavily than the input rate. List $0.20/$0.75 per MTok (cached input $0.02); Inception is running an 80%-off launch promo ($0.04/$0.15). 260K chat context, 65,536 max output. Diffusion-based 'dLLM'.

What is Inception Mercury 2.5's context window?

Inception Mercury 2.5 accepts about 260K tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.

What is Inception Mercury 2.5 best for?

Inception Mercury 2.5 is a balanced tier from Inception. It suits ultra-low-latency, high-throughput generation, structured output. Promo pricing will end — budget at the $0.20/$0.75 list rate. Diffusion architecture behaves differently from autoregressive models.

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