The same TypeScript file becomes 1,178 tokens on Claude's newest tokenizer versus 681 on GPT-5.x - 1.73x more for identical code. We measured every frontier tokenizer to show why the headline $/Mtok is not a comparable price.
OpenAI doubled per-token prices with GPT-5.5 but the model is less verbose. We measured real usage to see the net cost impact.
Grok model descriptions and pricing
From the Zed Blog: We're moving Zed AI from prompt-based limits to token-based pricing.