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Claude Sonnet 4.6 vs GPT-5.4

Comprehensive comparison between Anthropic's Claude Sonnet 4.6 and OpenAI's GPT-5.4. Compare pricing, performance, features, and user reviews.

claude sonnet vs gptsonnet 4.6 vs gpt 5.4best value ai model

Claude Sonnet 4.6

Anthropic

Anthropic's most capable Sonnet yet. 1M context window (beta), 30-50% faster than Sonnet 4.5, approaching Opus-level intelligence at 1/3 the cost. Default model on claude.ai. Excels at coding, computer use, agent planning, and long-context reasoning.

$3/$15per M tokens
Details

GPT-5.4

OpenAI

OpenAI's most capable and efficient frontier model for professional work. Combines industry-leading coding with native computer use, 1M+ context window, and improved reasoning. First GPT model to beat human performance on desktop navigation tasks.

$2.5/$15per M tokens
Details

Specs Comparison

SpecificationClaude Sonnet 4.6GPT-5.4
Context Window1000K1050K
Max Output128K128K
Input (per 1M tokens)$3.00$2.50
Output (per 1M tokens)$15.00$15.00
Reasoning
Open Source

Scenario Score Comparison

Coding
—
vs
94
Writing
—
vs
93

Claude Sonnet 4.6

Pros

  • + 1M context window (beta)
  • + Near-Opus intelligence at Sonnet price
  • + 30-50% faster than Sonnet 4.5
  • + Human-level computer use capability
  • + Excellent for agentic workflows

Cons

  • − 1M context still in beta
  • − Some users report inconsistent reasoning
  • − Still not Opus for most complex tasks

GPT-5.4

Pros

  • + 1M+ context window (largest in GPT lineup)
  • + Native computer use capability
  • + 33% fewer hallucinations vs GPT-5.2
  • + Tool search reduces tokens by 47%
  • + Half the price of Claude Opus 4.6

Cons

  • − 2x pricing above 272K tokens
  • − 24% longer average responses (more output tokens)
  • − Health benchmarks slightly worse than 5.2
  • − Some users report benchmark-optimized feel

Recommendation

Choose Claude Sonnet 4.6 if you:

  • • Need 1m context window (beta)
  • • Need near-opus intelligence at sonnet price
  • • Need 30-50% faster than sonnet 4.5

Choose GPT-5.4 if you:

  • • Need 1m+ context window (largest in gpt lineup)
  • • Need native computer use capability
  • • Need 33% fewer hallucinations vs gpt-5.2

Based on scores across 2 scenarios, GPT-5.4 performs better overall.

Claude Sonnet 4.6 Details GPT-5.4 Details

Get Started with Claude Sonnet 4.6

1Sign up at claude.ai (free)
2Sonnet is the default model
3Start chatting immediately

💡 Sonnet 4.6 is free to use on claude.ai.

Get Started with GPT-5.4

1Sign up at chat.openai.com
2Choose Plus ($20/mo) or Pro ($200/mo)
3Select GPT-5.4 in model picker

💡 Pro plan offers higher rate limits and priority access.

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