GLM 5.1 vs Gemini 3.8 Flash High

Side-by-Side API Pricing & Specs

Live per-million-token pricing served through Newton’s unified OpenAI-compatible gateway.

Real-World Engineering Workload Cost

Estimated spend for typical coding and autonomous agent workloads based on published per-token rates:

When to Route to GLM 5.1 vs Gemini 3.8 Flash High

Because Newton’s exposes both glm-5.1 and gemini-3.8-flash-high behind the same API key and base URL, engineering teams frequently combine both models in the same workflow:

• Primary Planning & ArchitectureGLM 5.1 (glm-5.1)
• High-Volume Execution & VerificationGemini 3.8 Flash High (gemini-3.8-flash-high)
• Interactive Cost SimulatorOpen Token Calculator →

Switch Between Both Models With One API Key

Point the official OpenAI SDK, Cursor, or Claude Code at https://newtons.dev/api/v1 and swap the model string on demand:

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.NEWTONS_API_KEY,
  baseURL: "https://newtons.dev/api/v1",
});

// Switch between GLM 5.1 and Gemini 3.8 Flash High with 1 line:
const response = await client.chat.completions.create({
  model: "glm-5.1", // or "gemini-3.8-flash-high"
  messages: [{ role: "user", content: "Compare architecture trade-offs." }],
});

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