OpenAI and Anthropic slash prices in aggressive push against open source AI models
- Published
OpenAI lowered GPT-5.6 Luna pricing by 80%, and Anthropic introduced Claude Opus 5.5 at prices 20% below Opus 5. The two price moves were presented as part of a broader push in the AI model market.
Key claims & sources
What it means
In practice, the pricing terms available for these two models are different from before: OpenAI’s GPT-5.6 Luna is now priced lower, and Anthropic’s Claude Opus 5.5 sits below Opus 5. What does not change from these pieces alone is whether access, features, or model behavior changed with the new pricing, because only the price adjustments are stated.
Market reaction i
The move was larger before the first headline than after. That is an observation, not an explanation: the market also moves on things nobody publishes.
Coverage timeline
Every piece in order, with the time its news medium declares — if it is not believable we use ours and say so — and what it added to what was already known at that point. Arriving first is not the same as adding something.
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