# Frontier List Prices Keep Falling as Anthropic Cuts Opus Costs 40% and Meta Trades Discounts for Training Data

Meta's contributor tier charges $0.10 per million input tokens if developers let Meta train on their prompts and completions, more than 90% below its standard rate. That gap is now part of the debate over Anthropic's listing price.

- Published: 2026-11-09T06:17:39.329Z
- Canonical: https://polylog.news/ai/2026-11-09/frontier-list-prices-keep-falling-as-anthropic-cuts-opus-cos
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Anthropic News](https://www.anthropic.com/claude-opus-5-5), [Meta AI](https://ai.meta.com/blog/introducing-muse-spark-meta-model-api/)

Anthropic's current flagship, Claude Opus 5.5, launched September 22. Anthropic says it leads in agentic coding and knowledge work and costs 40% less to run than Opus 5 on typical workloads. Launch coverage reports list pricing of $4 and $2…

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