Models & Assistants
Claude Haiku 5.5 is Anthropic's cheapest model yet, at $0.10 per million input tokens
Haiku 5.5 replaces Haiku 4.5 with up to 90% lower pricing, a 1M-token context window, and adaptive thinking.
Topic
Cost Optimization
4 posts about Cost Optimization from Simon Carter.
Developer Tools & APIs
Anthropic makes Claude Sonnet 5's $2/$10 pricing permanent, cancels September price hike
Anthropic has confirmed the $2/$10 per million token rate for Claude Sonnet 5 is now permanent. The planned 50% increase from 1 September 2026 will not happen.
Developer Tools & APIs
OpenAI cuts GPT-5.6 Luna pricing by 80% and frames it as the start of something bigger
OpenAI drops Luna API prices to $0.20/$1.20 per million tokens and trims Terra by 20%, calling it the beginning of an 'abundance flywheel' strategy.
Developer Tools & APIs
Anthropic Claude API: Zero-Cost Refusals and a Smarter Advisor Tool for Agentic Pipelines
Anthropic now bills zero for API refusals with no output, and the advisor tool gets a max_tokens cap to control cost and latency in agentic workloads.