Cached input pricing for GLM-5.1 and Qwen3.5-397B-A17B, DeepSeek-V4-Pro price cut

The following changes are effective June 9, 2026:

New cached input pricing (per 1M tokens):

• zai-org/GLM-5.1: $0.26 cached input (81% discount from $1.40 standard input).
• Qwen/Qwen3.5-397B-A17B: $0.35 cached input (42% discount from $0.60 standard input).

Price decrease for deepseek-ai/DeepSeek-V4-Pro (per 1M tokens):

• Input: $2.10 → $1.74.
• Output: $4.40 → $3.48.
• Cached input: $0.20 (unchanged).

See Serverless models for the full pricing catalog.