Claude Models
Claude Sonnet vs Opus: Which Model Should You Actually Use?
Sonnet delivers 97–99% of Opus's coding ability at roughly 40% of the price. Here's the benchmark data, the pricing math, and a simple decision framework.
8 min read
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Claude Models
Claude Models
Claude Sonnet 5: The Balanced Default Model
Claude Sonnet 5 is Anthropic's balanced daily-driver model — near-Opus performance at $3/$15, a 1M-token context window, and adaptive thinking on by default.
9 min read
Claude Models
Claude Opus Versions: Release History and What Changed
A plain-English history of every Claude Opus version, from Claude 3 Opus to the Opus 4.8 flagship — what each release changed, and how to find the latest.
10 min read
Claude Models
Claude Models Explained: Opus vs Sonnet vs Haiku
Every Claude model in one place: Opus 4.8, Sonnet 5, and Haiku 4.5 compared on price, context, and use case — plus how to decode Anthropic's version names.
13 min read
Claude Models
Claude Opus 4.8: Anthropic's Flagship Model Explained
Claude Opus 4.8 is Anthropic's flagship model for hard reasoning and agentic coding: the benchmarks, $5/$25 pricing, 1M context, and when to pick it over Sonnet.
9 min read
Claude Models
Claude Haiku 4.5: Fast, Cheap, and Capable
Claude Haiku 4.5 is Anthropic's fastest, cheapest model — $1/$5 per million tokens, 200K context, and near-frontier coding. When to pick it, and its real limits.
9 min read
Claude Models
Claude Haiku vs Sonnet: When to Use Each Model
Claude Haiku vs Sonnet: Haiku is cheaper and faster ($1/$5, 200K context), Sonnet is stronger ($3/$15, 1M). When each model is the right call.
10 min read
Claude Models
Claude Context Window Explained: 200K vs 1M Tokens
Claude's context window is its working memory: 1M tokens on Opus 4.8 and Sonnet 5, 200K on Haiku 4.5. What happens when it fills up, and how to manage it.
10 min read