Palmyra X5

WriterMCP Tool CallReasoning

writer/palmyra-x5Closed API

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

Benchmark Pricing$0.60 / 1M in$6.00 / 1M out

Context: 1,000,000 tokens•Max Output: 8,192 tokens•Released: 2025-04-28

TECHNICAL SPECIFICATIONS

Context Window1,000,0001M tokens

Max Output8,1928.2K tokens

LicenseProprietaryCloud API only

Input Modalities

TextVision

Function / Tool CallingSupported (MCP Ready)

Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Palmyra X5 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 1,000,000 tokens, this model can handle extremely large MCP resource manifests, complete database schemas, and multiple active server tool definitions simultaneously without degradation.

API CALL INVOCATION EXAMPLE

// Example: Calling Palmyra X5 via OpenAI SDK
import OpenAI from "openai";

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

const response = await client.chat.completions.create({
  model: "writer/palmyra-x5",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

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