Who are the LLM-as-a-Service vendors to know in 2027?
Direct Answer In 2027, the LLM-as-a-Service vendor landscape clusters into five tiers. Tier 1 frontier model vendors: Anthropic (Claude Opus 4.7, Sonnet 4.6, Haiku 4.5), OpenAI (GPT-5, GPT-5o, GPT-5o-mini), Google (Gemini Pro 2.5, Flash 2.5…
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