The Model Gap

Anthropic

Claude Opus 5

Released
2026-07-24
License
proprietary
Context window
1,000K tokens
Knowledge cutoff
2026-05

Pricing

$5.00 in / $25.00 out per 1M tokens official pricing

In plain English: Successor to Claude Opus 4.8 at the same $5/$25 price. New low/medium/high 'effort' toggle (defaults high). Anthropic positions it as 'close to the frontier intelligence of Claude Fable 5 at half the price'. Max output 128k (300k via batch beta).

Benchmark scores

BenchmarkScore
🧠 Reasoning(no tools)
🛠️ Long-horizon coding
🐛 Bug fixing
⌨️ Contest coding