fast-mode
2 articles
Fast Doesn't Mean Good — Anthropic Fast Mode vs OpenAI Codex Spark
In the same week, Anthropic shipped Fast Mode (same model, 2.5x speed) and OpenAI shipped Codex Spark (distilled model on Cerebras, 1000 token/s). One bets on accuracy, the other on instant interaction. This isn't a speed race — it's a product philosophy showdown.
Claude Opus 4.6 Just Got 2.5x Faster — But at 6x the Price. Should You Turn It On?
Anthropic just released Opus 4.6 Fast Mode — same model, 2.5x faster responses. The catch? API pricing jumps from $5/$25 to $30/$150 per MTok — a 6x increase. Boris Cherny calls it a 'huge unlock.' But when should you actually use it? Let's do the math.