Claude Opus 5.5: Pricing, Benchmarks and API Changes
Claude Opus 5.5 changes API pricing, thinking and tool behavior. This guide separates Anthropic's benchmark and workload-cost claims from the current specs, cache rates and upgrade checks.
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Claude Opus 5.5 in GitHub Copilot: Plans, Access and Billing
GitHub lists Opus 5.5 for Copilot Pro+, Max, Business and Enterprise, with gradual rollout and token-based AI Credits. Legacy annual Pro/Pro+ plans are an exception.
Anthropic Launches Claude Opus 5: Pricing, Benchmarks, Availability and What Remains Unknown
Anthropic launched Claude Opus 5 on July 24. See official pricing, availability, benchmark context, safeguards, launch reaction and what remains unproven.
Claude 5 Context Engineering Guide: CLAUDE.md, Skills, Memory and Agent Tools
A practical, source-checked guide to Claude 5 context engineering: simplify CLAUDE.md, design Skills, separate memory, improve tools and use progressive disclosure without losing critical constraints.
Claude Opus 5 vs GPT-5.6 Sol, Fable 5, Sonnet 5 and Kimi K3: Benchmarks, Pricing and Evidence
Compare Claude Opus 5 with GPT-5.6 Sol, Fable 5, Sonnet 5, Kimi K3 and Gemini 3.6 Flash using sourced benchmarks, prices, use cases and limits for teams.