GPT 5.6 Sol on Cerebras runs at 750 tokens per second.
5.5 XHigh was running at 70-100 TPS
Sam Altman also said "GPT 5.6 sol is 54% more efficient on agentic coding tasks"
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From "CNBC Television" YouTube channel, (full video link in comment)
https://x.com/rohanpaul_ai/status/2076407574019334516/video/1https://x.com/rohanpaul_ai/status/2076407574019334516/video/1