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Claude Opus 4.6 vs GPT-5 Mini
Comprehensive side-by-side LLM comparison
Claude Opus 4.6 leads with 20.6% higher average benchmark score. GPT-5 Mini offers 104.8K more tokens in context window than Claude Opus 4.6. GPT-5 Mini is $5.00 cheaper per million tokens. Claude Opus 4.6 is available on 3 providers. Overall, Claude Opus 4.6 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.6, released by Anthropic in February 2026, is a large language model from the Claude 4 family designed for complex agent orchestration, extended reasoning, and long-form code generation. It features a 200K token context window (extendable to 1M tokens in beta), 128K maximum output tokens, native image understanding, and extended thinking with both standard and adaptive effort modes. Opus 4.6 targets multi-step agentic workflows, parallel tool use, and applications requiring sustained reasoning over large contexts.
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OpenAI
GPT-5 mini, released by OpenAI in August 2025, is a smaller variant from the GPT-5 family that inherits GPT-5's unified reasoning architecture and multimodal capabilities at a reduced inference cost. It targets high-volume production use cases requiring a balance of intelligence and response speed, offering GPT-5 capabilities for applications where full GPT-5 inference costs are a concern.
6 months newer
GPT-5 Mini
OpenAI
2025-08
Claude Opus 4.6
Anthropic
2026-02
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.6
Input:$5.00
Output:$25.00
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GPT-5 Mini
Input:$5.00
Output:$20.00($5.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Opus 4.6
Average Score:40.0%(+20.6%)
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GPT-5 Mini
Average Score:19.4%
Performance comparison across key benchmark categories
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Claude Opus 4.6
Reasoning40.0%(+20.6%)
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GPT-5 Mini
Reasoning19.4%
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.6
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 Opus 4.6
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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GPT-5 Mini
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Claude Opus 4.6
Avg Score:40.0%(+20.6%)
Providers:3
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GPT-5 Mini
Avg Score:19.4%
Providers:1