TokenCalc AI
Head-to-Head Architectural Faceoff (2026 Live)

GPT-5.4 Mini vs Claude Sonnet 5.5

Compare GPT-5.4 Mini vs Claude Sonnet 5.5 API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.

AI Overview & Search Executive Summary

GPT-5.4 Mini charges $0.75/1M input and $4.50/1M output tokens, compared to Claude Sonnet 5.5 at $2.00/1M input and $10.00/1M output. GPT-5.4 Mini is 2.7x cheaper on input tokens. In reasoning benchmarks, Claude Sonnet 5.5 holds the higher AA Intelligence Index rating. For latency-critical streaming, GPT-5.4 Mini delivers 212 t/s (112.0s TTFT) while Claude Sonnet 5.5 provides 156 t/s (247.0s TTFT).

Overall Winner
GPT-5.4 Mini
Best Price/IQ Balance
Budget Winner
GPT-5.4 Mini
GPT-5.4 Mini is 2.7x cheaper on input tokens
Coding & Logic
Claude Sonnet 5.5
Higher Benchmark Rating
Context Window
Claude Sonnet 5.5
Larger Document Context

Full Metric & Specification Comparison

MetricGPT-5.4 MiniClaude Sonnet 5.5Advantage
ProviderOpenAIAnthropic-
Input Token Cost (1M)$0.750$2.000GPT-5.4 Mini
Output Token Cost (1M)$4.500$10.000GPT-5.4 Mini
Context Window400k tokens1,000k tokensClaude Sonnet 5.5
AA Intelligence IndexUnrated55/100Unrated
Streaming LatencyUltra-FastFast-

Key Architectural Takeaways

  • Input Token Cost: GPT-5.4 Mini is $0.75/1M vs Claude Sonnet 5.5 at $2.00/1M
  • Output Token Cost: GPT-5.4 Mini is $4.50/1M vs Claude Sonnet 5.5 at $10.00/1M
  • Context Window: GPT-5.4 Mini supports 400k tokens vs Claude Sonnet 5.5 with 1,000k tokens
  • Benchmark Intelligence Rating: not rated for one or both models
  • Inference Latency: GPT-5.4 Mini is rated Ultra-Fast vs Claude Sonnet 5.5 rated Fast
Interactive Head-to-Head Simulator

Calculate Your Team's Exact Bill Difference

Drag the sliders below to see real-time cost divergences based on your daily token consumption.

Daily Input Tokens500,000 tokens
10k1M5M10M+
Daily Output Tokens250,000 tokens
5k500k2M5M+
GPT-5.4 MiniOpenAI
57.1% Lower Cost
$45.00/mo
$0.75/1M in · $4.50/1M out
IQ ScoreUnrated
Throughput212 t/s
Context400k
Claude Sonnet 5.5Anthropic
$105.00/mo
$2.00/1M in · $10.00/1M out
IQ Score55/100
Throughput156 t/s
Context1000k
Net Financial Advantage

Deploying GPT-5.4 Mini over Claude Sonnet 5.5 saves $60.00/mo ($720/yr) at this volume.

See all Claude Sonnet 5.5 alternatives →

Frequently Asked Questions

Is GPT-5.4 Mini cheaper than Claude Sonnet 5.5?

GPT-5.4 Mini is significantly more economical, charging $0.75/1M input compared to $2.00/1M for Claude Sonnet 5.5.

Which model should I choose for production?

If your primary constraint is API cost and high query throughput, choose GPT-5.4 Mini. If you require peak reasoning accuracy and complex tool use, Claude Sonnet 5.5 is recommended.

How does context window compare between GPT-5.4 Mini and Claude Sonnet 5.5?

Claude Sonnet 5.5 offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.

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