Comparison directory · data through 2026-10-05 (Pacific)
Compare AI model API costs
Focused comparisons between matching tracked tier roles at Anthropic, OpenAI and Google Gemini. Cost alone does not measure capability.
- Claude Haiku 4.5 vs GPT-6 Luna · Small
- Claude Haiku 4.5 vs Flash-Lite 3.5 · Small
- GPT-6 Luna vs Flash-Lite 3.5 · Small
- Claude Sonnet 5.5 vs GPT-5.6 Terra · Mid
- Claude Sonnet 5.5 vs Flash 3.6 · Mid
- GPT-5.6 Terra vs Flash 3.6 · Mid
- Claude Opus 5.5 vs GPT-6 Sol · Flagship
- Claude Opus 5.5 vs Pro 3.1 · Flagship
- GPT-6 Sol vs Pro 3.1 · Flagship