GPT-5 vs Claude Opus 4.5

Comprehensive comparison between OpenAI's GPT-5 and Anthropic's Claude Opus 4.5. Compare pricing, performance, features, and user reviews.

gpt vs claudegpt-5 vs claudeopenai vs anthropic

GPT-5

OpenAI

OpenAI's unified flagship model with built-in routing system that auto-selects optimal sub-models. HN users praise its comprehensive multimodal capabilities and competitive pricing ($1.25 vs Claude $15). However, benchmark chart errors at launch sparked controversy.

$1.25/$10per M tokens
Details

Claude Opus 4.5

Anthropic

Anthropic's flagship model, widely recognized as the top coding model. Excels at complex refactoring, large codebase comprehension, and agentic coding. Claude Code makes it the go-to choice for professional developers.

$5/$25per M tokens
Details

Specs Comparison

SpecificationGPT-5Claude Opus 4.5
Context Window400K200K
Max Output128K64K
Input (per 1M tokens)$1.25$5.00
Output (per 1M tokens)$10.00$25.00
Reasoning
Open Source

Scenario Score Comparison

Coding
86
vs
95
Writing
92
vs
90
Translation
93
vs
89
Data Analysis
91
vs
88
Conversation
94
vs
92
Image Gen
90
vs
75
Research
89
vs
92
App Building
88
vs
91

GPT-5

Pros

  • + Highly competitive pricing
  • + Most comprehensive multimodal
  • + DALL-E integration
  • + Largest ecosystem

Cons

  • − Coding inferior to Claude Opus
  • − Launch quality issues
  • − Black-box architecture

Claude Opus 4.5

Pros

  • + Top-tier coding ability
  • + Highest code quality
  • + Strong context understanding
  • + Mature Claude Code ecosystem

Cons

  • − Highest pricing ($15/1M input)
  • − Average response speed
  • − Strict quota limits

Recommendation

Choose GPT-5 if you:

  • • Need highly competitive pricing
  • • Need most comprehensive multimodal
  • • Need dall-e integration

Choose Claude Opus 4.5 if you:

  • • Need top-tier coding ability
  • • Need highest code quality
  • • Need strong context understanding

Based on scores across 8 scenarios, GPT-5 performs better overall.

GPT-5 Details Claude Opus 4.5 Details

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