Claude Blog
What Is Claude Fable 5.1: What Is Confirmed
Claude Fable 5.1 is drawing attention after leak reports pointed to an August 2026 release. Here is what is confirmed, how it compares with Fable 5
Claude Opus 5 Performance Analysis & Best Prompts: Complete 2026 Guide
what Opus 5 is, how it compares to Opus 4.8 and peers, benchmark performance, efficiency and cost analysis, practical prompting strategies drawn
How to Use Claude Opus 5 API with CometAPI
Learn how to use Claude Opus 5 API with CometAPI. Includes native Messages API, OpenAI-compatible chat, code examples, streaming, effort controls,.
Claude Opus 5: Release , Leaked Specs & Benchmarks
Claude Opus 5 covering latest rumors, official Anthropic status, expected specs, pricing signals
GPT-5.6 vs Claude Sonnet 5: Pricing, Benchmarks & API Access
GPT-5.6 and Claude Sonnet 5 are both generally available, but they solve production workloads differently.
Claude Sonnet 5 API Pricing: Migration Risks, Token Costs, and Opus Routing
Claude Sonnet 5 API pricing, model ID, tokenizer changes, Sonnet 4.6 migration notes, and an Opus 4.8 decision tree for builders.
How to Access the Claude API Without an Anthropic Account
Call Claude API but want to skip the administrative overhead of setting up a direct Anthropic developer account, a unified API gateway is a alternative.
Claude Fable 5 vs Claude Sonnet 5: Which is Better
Compare Claude Fable 5 and Claude Sonnet 5 with benchmarks, pricing, latency, coding performance, CometAPI setup, and model selection recommendations.