Anthropic: Claude Opus 4.5 (anthropic/claude-opus-4.5) is a chat model from openrouter with a 200K-token context window; proprietary (API-only); capabilities tools, vision, reasoning; input image, pdf, text; output text.
200KContext
32KMax output
$5$ / 1M in
23.7Intelligence
Pricing
Input
$5 / 1M tokens
Output
$25 / 1M tokens
Currency
USD
Note
Indicative US list price — verify with the vendor.
Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-07-24.
Benchmarks
Intelligence index
23.7
Math
62.7
Cited from a public third-party leaderboard — a reference, verify at the source. Source: Artificial Analysis. Last verified 2026-09-26.