MODEL COMPARISONS
Compare AI models
Head-to-head pricing, context and Artificial Analysis benchmarks for the models people are weighing up right now. Run any of them with one SandBase API key.
ONE PLATFORMMODELS · APIs · AGENTSTRACEABLE DELIVERY
Popular comparisons
- Claude Opus 5.5 vs Gemini 4 ArgonThe two frontier flagships of October 2026, tested head to head on the same prompts.
- GPT-6 Astra vs Gemini 4 ArgonArgon is rated level with GPT-6 Astra on intelligence at a lower cost per task.
- Claude Opus 5.5 vs GPT-6 AstraThe default picks for long agentic coding sessions.
- Claude Opus 5.5 vs Claude Sonnet 5.5When the flagship is worth it, and when Sonnet does the job for less.
- GPT-6.1 Sol vs Gemini 4 ArgonThe low-cost frontier option from each lab.
Models covered
Every model that appears in a comparison above.
- Claude Opus 5.5
anthropic/claude-opus-5.5 - Gemini 4 Argon
google/gemini-4-argon - GPT-6 Astra
openai/gpt-6-astra - Claude Sonnet 5.5
anthropic/claude-sonnet-5.5 - GPT-6.1 Sol
openai/gpt-6.1-sol