Flash vs Pro: Three Technical Highlights of V4.1-Flash
Three days after launch, the hottest question: how does a 552B fast-tier model rival the 1.6T V4 Pro?
1. New Encoder Architecture
V4.1-Flash restructures the encoder, preserving long-context comprehension at smaller scale, with up to 1M-token context.
2. Long-Context Cache
Reported ~88% reduction in cache disk usage, plus $0.003 cache-hit pricing, slashes marginal cost for long documents.
3. Pricing as Product
Off-peak output at $0.60 vs V4 Pro's $1.98 (peak: $1.20 vs $3.96) lets many flagship-tier workloads downgrade to Flash.