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Rate cards, one pair at a time

Each page compares two live model IDs: published list rate, outlet rate, and context window. GPT-6 Astra and Claude Opus 5.5 lead the index. When two IDs share a rate, the page says the difference is the identifier.

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GPT-6 Astra

Claude Opus 5.5

Claude Haiku 4.5

Claude Opus 4.7

Claude Opus 4.8

Claude Opus 5

Claude Sonnet 4.6

Claude Sonnet 5

GPT-5.3 Codex

GPT-5.4

GPT-5.4 Pro

GPT-5.5

GPT-5.6 Sol

GPT-5.6 Terra