Head-to-head price comparisons

• Claude Sonnet 5.5 vs GPT-6.1 Sol
• GPT-6 Astra vs Claude Opus 5.5
• Grok 4.7 vs GPT-6.1 Sol
• Gemini 3.1 Pro Preview vs Claude Sonnet 5.5
• DeepSeek V4 Pro vs GPT-6.1 Sol
• Mistral Large 4 vs DeepSeek V4 Pro
• Gemini 3.8 Flash vs Grok 4.3
• Claude Haiku 5.5 vs GPT-6 Luna