Claude Sonnet 5 & Haiku 4.5

Name: Claude Sonnet 5 & Haiku 4.5
Brand: Anthropic

Generally Available

Overview

The balanced and fast tiers of the Claude family. Sonnet 5 (June 30, 2026) pairs near-flagship capability with speed and a 1M-token context window; Haiku 4.5 is the fastest tier with near-frontier intelligence for high-volume, latency-sensitive workloads.

Both generally available across Claude plans, Claude Code and the Claude Platform. Sonnet 5 carries introductory pricing of $2/$10 per MTok through August 31, 2026.

Key Specs

Sonnet 5 Pricing

$3 / input, $15 / output MTok (1M context)

Haiku 4.5 Pricing

$1 / input, $5 / output MTok (200K context)