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Claude Haiku 4.5 vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 8.0% higher average benchmark score. GPT-5 offers 168.8K more tokens in context window than Claude Haiku 4.5. Claude Haiku 4.5 is $144.00 cheaper per million tokens. Claude Haiku 4.5 is available on 3 providers. Overall, GPT-5 is the stronger choice for coding tasks.
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Anthropic
Claude Haiku 4.5, released by Anthropic in October 2025, is a fast, efficient large language model from the Claude 4.5 family optimized for high-throughput, low-latency workloads. It features a 200K token context window, 64K maximum output tokens, native image understanding, and extended thinking capabilities. Haiku 4.5 targets latency-sensitive applications such as real-time assistants, document classification, and lightweight agentic tasks where rapid response times are a primary requirement.
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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.
1 month newer
GPT-5
OpenAI
2025-08-07
Claude Haiku 4.5
Anthropic
2025-10-01
Pricing Comparison
Cost per million tokens (USD)
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Claude Haiku 4.5
Input:$1.00
Output:$5.00($144.00 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 Haiku 4.5
Average Score:73.2%
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GPT-5
Average Score:81.1%(+8.0%)
Performance comparison across key benchmark categories
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Claude Haiku 4.5
Science73.0%
Coding73.3%
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GPT-5
Science
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Knowledge Cutoff
Training data recency comparison
Claude Haiku 4.5
2025-02
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 Haiku 4.5
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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GPT-5
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Claude Haiku 4.5
Avg Score:73.2%
Providers:3
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GPT-5
Avg Score:81.1%(+8.0%)
Providers:1