Mercury 2.5

InceptionMCP Tool CallReasoning

inception/mercury-2.5Closed API

Reasoning model for deliberate analysis, multi-step problem solving, and tool use

Benchmark Pricing$0.20 / 1M in$0.75 / 1M out$0.02 cache read

Context: 260,000 tokens•Max Output: 65,536 tokens•Released: 2026-09-08

TECHNICAL SPECIFICATIONS

Context Window260,000260K tokens

Max Output65,53665.5K tokens

LicenseProprietaryCloud API only

Input Modalities

Text

Function / Tool CallingSupported (MCP Ready)

Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Mercury 2.5 natively supports OpenAI / Anthropic format tool calling and is fully compatible with MCP servers and agent loops.

MCP Context Window Recommendations

With a context capacity of 260,000 tokens, this model can handle moderately large MCP tool definitions and multi-turn conversation logs comfortably.

API CALL INVOCATION EXAMPLE

// Example: Calling Mercury 2.5 via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.INCEPTION_API_KEY,
});

const response = await client.chat.completions.create({
  model: "inception/mercury-2.5",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

console.log(response.choices[0].message.content);