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  1. Home
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  3. Compare

GPT-5.6 Luna vs DeepSeek V4 Flash 0423

Compare GPT-5.6 Luna from OpenAI and DeepSeek V4 Flash 0423 from DeepSeek 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-5.6 Luna
Favicon for deepseek
DeepSeek V4 Flash 0423
Favicon for openai
GPT-5.6 Luna
Favicon for deepseek
DeepSeek V4 Flash 0423

Overview

GPT-5.6 Luna
Author
OpenAI
DeepSeek V4 Flash 0423
Author
DeepSeek
GPT-5.6 Luna
Context length
1.05Mtokens
DeepSeek V4 Flash 0423
Context length
1.05Mtokens
GPT-5.6 Luna
Reasoning
DeepSeek V4 Flash 0423
Reasoning
GPT-5.6 Luna
Input modalities
DeepSeek V4 Flash 0423
Input modalities
GPT-5.6 Luna
Output modalities
DeepSeek V4 Flash 0423
Output modalities

GPT-5.6 Luna vs DeepSeek V4 Flash 0423: side-by-side summary

GPT-5.6 Luna and DeepSeek V4 Flash 0423 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-5.6 Luna, from OpenAI, has a 1,050,000-token context window and is priced at $0.20/M tokens input, $1.20/M tokens output on OpenRouter.

DeepSeek V4 Flash 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.03556/M tokens input, $0.07112/M tokens output on OpenRouter.

Context window
  • GPT-5.6 Luna: 1,050,000 tokens
  • DeepSeek V4 Flash 0423: 1,048,576 tokens
Price
  • GPT-5.6 Luna: $0.20/M tokens input, $1.20/M tokens output
  • DeepSeek V4 Flash 0423: $0.03556/M tokens input, $0.07112/M tokens output
Provided by
  • GPT-5.6 Luna: OpenAI
  • DeepSeek V4 Flash 0423: DeepSeek
  • GPT-5.6 Luna model details, providers and pricing
  • DeepSeek V4 Flash 0423 model details, providers and pricing