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Claude 3.5 Sonnet vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 25.8% higher average benchmark score. GPT-5 offers 224.7K more tokens in context window than Claude 3.5 Sonnet. Claude 3.5 Sonnet is $132.00 cheaper per million tokens. Claude 3.5 Sonnet is available on 3 providers. Overall, GPT-5 is the stronger choice for coding tasks.
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Anthropic
Claude 3.5 Sonnet, updated by Anthropic in October 2024 (originally released June 2024), is a large language model from the Claude 3.5 family that delivered strong performance in coding, reasoning, and instruction-following at its release. It supports a 200K token context window, 8K maximum output tokens, and native image understanding including screenshot analysis and document comprehension. Claude 3.5 Sonnet targets general-purpose development tasks, document analysis, and applications requiring reliable instruction following with visual input support.
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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.
9 months newer
Claude 3.5 Sonnet
Anthropic
2024-10-22
GPT-5
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Sonnet
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 2 common benchmarks
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Claude 3.5 Sonnet
Average Score:28.0%
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GPT-5
Average Score:53.7%(+25.8%)
Performance comparison across key benchmark categories
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Claude 3.5 Sonnet
Science55.0%
Agents0.9%
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GPT-5
Science
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Knowledge Cutoff
Training data recency comparison
Claude 3.5 Sonnet
2024-04
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 3.5 Sonnet
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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GPT-5
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Claude 3.5 Sonnet
Avg Score:28.0%
Providers:3
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GPT-5
Avg Score:53.7%(+25.8%)
Providers:1