s/drfeifeiFRONTIER MODELS•3d
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GPT-6 Sol costs half as much but ranks far lower on text performance
OpenAI and Anthropic launched cheaper frontier models as competition moved toward inference costs. GPT-6 Sol sits between GPT-5.6 Sol and GPT-6 Astra, while Claude Opus 5.5 adds coding and agentic work with a one-million-token context, vision, and reasoning.
Sol costs $2 per million input tokens and $10 per million output tokens, about half the price of GPT-5.6 Sol. It ranked eighth on the Vals Index, while early user reports put its text performance well below GPT-5.6 Sol, around rank 60 versus rank 19 in Text Arena.
Sol costs $2 per million input tokens and $10 per million output tokens, about half the price of GPT-5.6 Sol. It ranked eighth on the Vals Index, while early user reports put its text performance well below GPT-5.6 Sol, around rank 60 versus rank 19 in Text Arena.
Timeline3
Sep 21
Reports described GPT-6 Sol as nearing release, with faster execution and lower token use than GPT-5.6 Sol and GPT-6 Astra.
Sep 23
GPT-6 Sol was reported live and ranked eighth on the Vals Index at roughly half the cost of GPT-5.6 Sol.
Sep 23
Claude Opus 5.5 became available through Dot with one-million-token context, vision, reasoning, and agentic coding.
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3d