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  1. Home
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  3. Compare

GPT-6 Luna vs GLM 5.3 FlashX

Compare GPT-6 Luna from OpenAI and GLM 5.3 FlashX from Z.ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for openai
GPT-6 Luna
Favicon for z-ai
GLM 5.3 FlashX
Favicon for openai
GPT-6 Luna
Favicon for z-ai
GLM 5.3 FlashX

Overview

GPT-6 Luna
Author
OpenAI
GLM 5.3 FlashX
Author
Z.ai
GPT-6 Luna
Context length
1.05Mtokens
GLM 5.3 FlashX
Context length
1.05Mtokens
GPT-6 Luna
Reasoning
GLM 5.3 FlashX
Reasoning
GPT-6 Luna
Input modalities
GLM 5.3 FlashX
Input modalities
GPT-6 Luna
Output modalities
GLM 5.3 FlashX
Output modalities

GPT-6 Luna vs GLM 5.3 FlashX: side-by-side summary

GPT-6 Luna and GLM 5.3 FlashX are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-6 Luna, from OpenAI, has a 1,050,000-token context window and is priced at $0.10/M tokens input, $0.50/M tokens output on OpenRouter.

GLM 5.3 FlashX, from Z.ai, has a 1,048,576-token context window and is priced at $0.37/M tokens input, $1.25/M tokens output on OpenRouter.

Context window
  • GPT-6 Luna: 1,050,000 tokens
  • GLM 5.3 FlashX: 1,048,576 tokens
Price
  • GPT-6 Luna: $0.10/M tokens input, $0.50/M tokens output
  • GLM 5.3 FlashX: $0.37/M tokens input, $1.25/M tokens output
Provided by
  • GPT-6 Luna: OpenAI
  • GLM 5.3 FlashX: Z.ai
  • GPT-6 Luna model details, providers and pricing
  • GLM 5.3 FlashX model details, providers and pricing