Atlas / Anthropic / Claude Opus 4.5

Claude Opus 4.5

Highest-capability Claude model for deep reasoning.

Active Tools

Input

$5.00

Output

$25.00

Cached input

$0.50

per 1M tokens Source ↗

Pricing history

TierUnitInputCached inputOutputEffectiveSource

Standard Per 1M tokens $5.00 $0.50 $25.00 March 1, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Feb. 22, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Feb. 15, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Feb. 8, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Feb. 1, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Jan. 25, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Jan. 11, 2026 Source

Standard Per 1M tokens $5.00 $0.50 $25.00 Jan. 10, 2026 Source