Inception: Mercury 2.5 Preview
Analysis Summary
Inception's Mercury 2.5 Preview is a text model with a 260K-token context, tool use, and function calling. Its listed input and output prices are low, but the supplied record contains no benchmark results for this preview version. Reasoning quality, coding capability, and tool-use reliability therefore remain unverified.
The price and context length make it a plausible candidate for internal trials involving document processing or simple tool-connected tasks. Preview status and missing performance evidence argue against placing it directly in a client-facing or autonomous workflow. Test it on representative prompts, including error cases and structured outputs, before expanding use. It is best treated as an inexpensive evaluation option until its quality and operational consistency are measured.
Assessed September 23, 2026
Editorial notes
Mercury 2.5 Preview offers low listed pricing, a 260K-token context, and tool and function calling, but no benchmark results are provided to establish its performance.
The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?
DFO Verdict
Mercury 2.5 Preview offers low listed pricing, a 260K-token context, and tool and function calling, but no benchmark results are provided to establish its performance.
How Inception: Mercury 2.5 Preview compares
Its 260K-token context window is larger than 60% of the models we list. At $0.04 per million input tokens it is cheaper than 74% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.04 | $0.000040 |
| Output | $0.15 | $0.000150 |
What would Inception: Mercury 2.5 Preview cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
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These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Inception: Mercury 2.5 Preview for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout 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..
Frequently asked questions about Inception: Mercury 2.5 Preview
How much does Inception: Mercury 2.5 Preview cost?
Inception: Mercury 2.5 Preview costs $0.04 per million input tokens and $0.15 per million output tokens.
What is the context window of Inception: Mercury 2.5 Preview?
Inception: Mercury 2.5 Preview has a context window of 260,000 tokens (260K).
What can Inception: Mercury 2.5 Preview do?
Inception: Mercury 2.5 Preview supports tool use and function calling.
Who created Inception: Mercury 2.5 Preview?
Inception: Mercury 2.5 Preview is developed by Inception and was released on August 31, 2026.