Inception

Inception: Mercury 2.5 Preview

Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. Instead of generating tokens sequentially, Mercury 2.5 produces and refines multiple tokens in parallel, achieving...

Context Window
260K tokens
Parameters
N/A
Input Price
$0.04/1M
Output Price
$0.15/1M
Price Tier
budget
Provider
Inception

How to Use Inception: Mercury 2.5 Preview

With CoreAI, you can start chatting with Inception: Mercury 2.5 Preview instantly — no separate subscription needed. CoreAI lets you chat with Inception: Mercury 2.5 Preview alongside 300+ other AI models from Inception and other providers like OpenAI, Anthropic, Google, Meta, and more.

  1. Download the CoreAI app for iOS, Android, or use the Web App
  2. Select Inception: Mercury 2.5 Preview from the model selector
  3. Start chatting, comparing, or creating with AI

Inception: Mercury 2.5 Preview at a Glance

Measured against all 401 chat models CoreAI serves, Inception: Mercury 2.5 Preview sits at #230 for context capacity — 260K tokens, roughly 195,000 words or 390 pages of text in a single conversation. On price, it is the #13 cheapest of 131 budget-tier models by input cost. Released 2026-08-31, it is one of the 1 newest additions to the catalog. It supports step-by-step reasoning (thinking mode).

Inception: Mercury 2.5 Preview Compared to Its Closest Alternatives

SpecInception: Mercury 2.5 PreviewInception: Mercury 2Ling 3.0 Flash Fin (free)IBM: Granite 4.0 Micro
ProviderInceptionInceptionInclusionaiIbm-granite
Input $/1M tokens$0.04$0.25Free$0.017
Output $/1M tokens$0.15$0.75Free$0.112
Context window260K128K262K131K
Reasoning modeYesYesYesNo
Image inputNoNoNoNo
Price tierbudgetbudgetbudgetbudget

Every model in this table is available on CoreAI — open the web app and run the same prompt through Inception: Mercury 2.5 Preview and Inception: Mercury 2 side by side to judge with your own eyes.

What Inception: Mercury 2.5 Preview Actually Costs in Practice

A typical question (about 1,000 tokens in, 500 out) runs $0.00012 on Inception: Mercury 2.5 Preview's raw per-token rates; a heavy session with a 50K-token document costs about $0.003. On CoreAI you don't juggle these numbers — one subscription covers Inception: Mercury 2.5 Preview and 300+ other models under a plan usage limit, with no API keys. See plans.

More Inception Models

Inception

Inception: Mercury 2

Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produ
128K budget

Frequently Asked Questions about Inception: Mercury 2.5 Preview

What is Inception: Mercury 2.5 Preview's context window?

Inception: Mercury 2.5 Preview handles 260K tokens of context — roughly 195,000 words, or about 390 pages of text in one conversation.

How much does Inception: Mercury 2.5 Preview cost?

Inception: Mercury 2.5 Preview's underlying rates are $0.04 per 1M input tokens and $0.15 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.

Can Inception: Mercury 2.5 Preview process images?

No — Inception: Mercury 2.5 Preview is text-only. If you need image understanding, its budget-tier peers with vision are listed in the comparison table above.

Does Inception: Mercury 2.5 Preview support reasoning or thinking mode?

Yes. Inception: Mercury 2.5 Preview can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.

How can I use Inception: Mercury 2.5 Preview without an API key?

Open the CoreAI web app or the iOS/Android app, pick Inception: Mercury 2.5 Preview in the model selector, and chat — no API key, no per-token billing. One subscription covers Inception: Mercury 2.5 Preview and 300+ other models.

What are the best alternatives to Inception: Mercury 2.5 Preview?

The closest alternatives on CoreAI are Inception: Mercury 2, Ling 3.0 Flash Fin (free), IBM: Granite 4.0 Micro — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.

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