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  "path": "/t/introducing-gpt-5-6-series-sol-terra-and-luna/1384931#post_12",
  "publishedAt": "2026-06-27T01:38:15.000Z",
  "site": "https://community.openai.com",
  "textContent": "DysTopia:\n\n> So for Pro models would be Nova or similar? Just wondering\n\nI think one can infer that, by pricing 2x between gpt-5.4 and gpt-5.5, the delivery of gains within a month was likely by a 2x test-time compute, technology like “pro” does with 12x the billing - and where the pro per-token bill was _not_ increased between these version steps.\n\nSo I would guess we have similar (gpt-5.4->gpt-5.5) === (gpt-5.6 terra->gpt-5.6 sol) - at least as your pricing guidance.\n\nNotable is API pro has no context window cache discount, so that can make costs of tool iterating extreme.",
  "title": "Introducing GPT-5.6 series: Sol, Terra and Luna"
}