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Claude Haiku 4.5

Anthropic · released Oct 2025 · proprietary API

Fastest Claude with near-frontier intelligence at low cost.

Context window

200K

200,000 tokens

Input price

$1

per 1M tokens

Output price

$5

per 1M tokens

Blended

$2

3:1 in:out mix

Weights

Proprietary

API only

Released

Oct 2025

Anthropic

Where it ranks

Of 19 models tracked.

Cost to run

#9

of 19

Input price

#7(tied)

of 19

Context window

#18(tied)

of 19

See the full Frontier Index →

Compare with

The nearest models by blended cost to run.

Put it to work

Specs from BitByteCore's hand-verified Frontier Ledger (v2026-07-20), this row verified 20 Jul 2026 against Anthropic's official pricing ↗. Model pricing moves fast — confirm with Anthropic before you rely on a figure.