Model Comparison

GPT-5 NanoDeepSeek V3.1 Reasoner
Let's see who can write code better - GPT-5 Nano or DeepSeek V3.1 Reasoner

Model Information

GPT-5 Nano

OpenAI

Description

Ultra-lightweight version of GPT-5

Specifications

Context Window272K
Max Output4K
ReleasedJun 2025
API

Pricing (per 1M)

In / Out
$0.05/ $0.4

Key Features

Minimal resource usageEdge deployment readyBasic GPT-5 capabilities

Strengths

  • Very low cost
  • Fast responses
  • Good for simple tasks

Weaknesses

  • Not yet released
  • Limited capabilities

Agent Support

DeepSeek V3.1 Reasoner

DeepSeek

Description

DeepSeek V3.1 Thinking mode

Specifications

Context Window128K
Max Output33K
ReleasedDec 2024
API

Pricing (per 1M)

In / Out
$0.07/ $1.68

Key Features

Performance improvementsBug fixesBetter stability

Strengths

  • More reliable than V3
  • Better performance
  • Improved efficiency

Weaknesses

  • Incremental improvements only
  • Still limited API access

Agent Support

No known agents