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  1. Home
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DeepSeek V4.1 Flash vs GPT Luna Latest

Compare DeepSeek V4.1 Flash from DeepSeek and GPT Luna Latest from OpenAI 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 deepseek
DeepSeek V4.1 Flash
Favicon for openai
GPT Luna Latest
Favicon for deepseek
DeepSeek V4.1 Flash
Favicon for openai
GPT Luna Latest

Overview

DeepSeek V4.1 Flash
Author
DeepSeek
GPT Luna Latest
Author
OpenAI
DeepSeek V4.1 Flash
Context length
1.05Mtokens
GPT Luna Latest
Context length
1.05Mtokens
DeepSeek V4.1 Flash
Reasoning
GPT Luna Latest
Reasoning
DeepSeek V4.1 Flash
Input modalities
GPT Luna Latest
Input modalities
DeepSeek V4.1 Flash
Output modalities
GPT Luna Latest
Output modalities

DeepSeek V4.1 Flash vs GPT Luna Latest: side-by-side summary

DeepSeek V4.1 Flash and GPT Luna Latest are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

DeepSeek V4.1 Flash, from DeepSeek, has a 1,048,576-token context window and is priced at $0.0108/M tokens input, $1/M tokens output on OpenRouter.

GPT Luna Latest, 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.

Context window
  • DeepSeek V4.1 Flash: 1,048,576 tokens
  • GPT Luna Latest: 1,050,000 tokens
Price
  • DeepSeek V4.1 Flash: $0.0108/M tokens input, $1/M tokens output
  • GPT Luna Latest: $0.10/M tokens input, $0.50/M tokens output
Provided by
  • DeepSeek V4.1 Flash: DeepSeek
  • GPT Luna Latest: OpenAI
  • DeepSeek V4.1 Flash model details, providers and pricing
  • GPT Luna Latest model details, providers and pricing

DeepSeek V4.1 Flash vs GPT Luna Latest at a glance

DeepSeek V4.1 Flash vs GPT Luna Latest comparison
AttributeDeepSeek V4.1 FlashGPT Luna Latest
Input price$0.0108/M tokens$0.10/M tokens
Output price$1/M tokens$0.50/M tokens
Context window1,048,576 tokens1,050,000 tokens
Intelligence IndexNot available27.8
Coding IndexNot availableNot available
Agentic IndexNot availableNot available
Latency (p50)1.31 s2.66 s
Throughput (p50)80.0 tok/s79.0 tok/s

Benchmark data updated Oct 28, 2026

Frequently asked questions

Which has the longer context window, DeepSeek V4.1 Flash or GPT Luna Latest?

GPT Luna Latest has the longer context window at 1,050,000 tokens, compared with 1,048,576 tokens for DeepSeek V4.1 Flash.

Which is faster, DeepSeek V4.1 Flash or GPT Luna Latest?

DeepSeek V4.1 Flash is faster on OpenRouter, generating a median 80.0 tokens per second compared with 79.0 tokens per second for GPT Luna Latest.