OpenAI has released its GPT-5.6 model family, featuring three tiers: Sol, Terra, and Luna, with pricing as low as $1 per million input tokens. This move contrasts with Anthropic's Fable 5, which has become more expensive due to high demand and capacity constraints, now priced at $10 per million input tokens. While Fable 5 still leads in some coding benchmarks, OpenAI's Sol is positioned for complex agentic tasks, and its tiered pricing strategy aims for broader market accessibility. AI
IMPACT OpenAI's aggressive pricing for GPT-5.6 tiers may force competitors to adjust their own pricing strategies, potentially lowering costs for AI development.
RANK_REASON Frontier-lab model release with system card and pricing details. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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