Compare AI models

Specifications
Context window
9k1M
API pricing
Input price
—$0.10
Output price
—$0.50
Cached input price
—$0.01

These models have no shared benchmark scores.

Overview
CompanyAnthropicAnthropic
Release dateMar 14 2023Oct 7 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Claude 1 and Claude Haiku 5.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Claude Haiku 5.5 has a verified first-party API price: $0.10 per million input tokens and $0.50 per million output tokens. No pay-as-you-go API rate is tracked for Claude 1. Claude 1 shipped 1303 days before Claude Haiku 5.5, so benchmark comparisons should account for the intervening progress.

Context windows are 9k (Claude 1) vs 1M (Claude Haiku 5.5).

Direct benchmark comparisons are unavailable — Claude 1 and Claude Haiku 5.5 don't publish scores on any of the same benchmarks.