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Claude Sonnet 4 vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 8.9% higher average benchmark score. GPT-5 offers 168.8K more tokens in context window than Claude Sonnet 4. Claude Sonnet 4 is $132.00 cheaper per million tokens. Claude Sonnet 4 is available on 3 providers. Overall, GPT-5 is the stronger choice for coding tasks.
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Anthropic
Claude Sonnet 4, released by Anthropic in May 2025, is a large language model from the Claude 4 family that delivers a balance of performance and efficiency for coding, reasoning, and analytical tasks. It features a 200K token context window (extendable to 1M tokens in beta), 64K maximum output tokens, native image understanding, and extended thinking support. Sonnet 4 targets development workflows, document analysis, and applications that benefit from the performance characteristics of the Claude 4 generation.
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OpenAI
GPT-5, released by OpenAI on August 7, 2025, is a large language model that combines direct generation and extended reasoning in a single unified system with a built-in routing mechanism. It features a 400K token context window, 128K maximum output tokens, native multimodal support (text, image, audio, video), and demonstrated strong results across coding, mathematics, visual understanding, and health benchmarks at release. GPT-5 targets complex multi-step tasks including advanced coding, mathematical problem solving, and long-context analysis.
2 months newer
Claude Sonnet 4
Anthropic
2025-05-14
GPT-5
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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Claude Sonnet 4
Input:$3.00
Output:$15.00($132.00 cheaper)
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GPT-5
Input:$30.00
Output:$120.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Sonnet 4
Average Score:35.6%
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GPT-5
Average Score:44.5%(+8.9%)
Performance comparison across key benchmark categories
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Claude Sonnet 4
Tool Use35.6%
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GPT-5
Tool Use44.5%(+8.9%)
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Knowledge Cutoff
Training data recency comparison
Claude Sonnet 4
2025-01
GPT-5
2025-05
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Sonnet 4
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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GPT-5
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Claude Sonnet 4
Avg Score:35.6%
Providers:3
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GPT-5
Avg Score:44.5%(+8.9%)
Providers:1