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...
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.
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).
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.
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.
Inception: Mercury 2.5 Preview handles 260K tokens of context — roughly 195,000 words, or about 390 pages of text in one conversation.
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.
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.
Yes. Inception: Mercury 2.5 Preview can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
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.
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.
Chat with Inception: Mercury 2.5 Preview and 300+ other AI models — all in one app.