Mercury 2

InceptionMCP Tool CallReasoning
inception/mercury-2Closed API

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

Benchmark Pricing$0.25 / 1M in$0.75 / 1M out$0.03 cache read
Context: 128,000 tokens•Max Output: 50,000 tokens•Released: 2026-02-24

TECHNICAL SPECIFICATIONS

Context Window128,000128K tokens
Max Output50,00050K tokens
LicenseProprietaryCloud API only
Input Modalities
Text
Function / Tool CallingSupported (MCP Ready)
Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Mercury 2 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 128,000 tokens, this model can handle moderately large MCP tool definitions and multi-turn conversation logs comfortably.

API CALL INVOCATION EXAMPLE

// Example: Calling Mercury 2 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",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

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

PRICING BY PROVIDER

7 providers
Inceptionmercury-2
$0.25 / $0.75$0.03 cache
NanoGPTmercury-2
$0.25 / $0.75$0.03 cache
AI/ML APIinception/mercury-2
$0.34 / $1.03$0.03 cache
Venice AImercury-2
$0.31 / $0.94$0.03 cache
Vercel AI Gatewayinception/mercury-2
$0.25 / $0.75$0.03 cache
Kilo Gatewayinception/mercury-2
$0.25 / $0.75$0.03 cache
OpenRouterinception/mercury-2
$0.25 / $0.75$0.03 cache

Rates in USD per 1M tokens. Rates synchronized from models.dev public catalog.

Prompt Caching Active

This model supports prompt caching at $0.03 / 1M tokens, saving up to 90% on repetitive MCP tool definitions and system instructions.

MODEL RESOURCES