Claude 4.5 Haiku specs, prices, where it runs and its benchmark standing

Name: Claude 4.5 Haiku
Author: Anthropic

closed weights · top 10 on 1 of 8 · released Oct 1, 2025

Provider: Anthropic
Release date: Oct 1, 2025 · Pricing lists Oct 15, 2025; Boards
Parameters: Not disclosed by Anthropic
Modalities: Text, Image, Files to Text; OpenRouter
License: Proprietary; LMArena
Context window: 200K tokens; Pricing
Pricing: $1 in / $5 out per 1M tokens; All prices
Hosting: 10 priced API routes · AWS Bedrock (35 regions) · OpenRouter; Pricing Regions
Weights: Closed weights
Benchmarks: 8 boards captured

Rank	Board	Category	Score	Of
18	SWE-Bench ProCoding · as “Haiku 4.5 (Claude Code) xhigh”	Coding	25.5%	18
29	MultiChallengeChat · as “claude-haiku-4-5-20251001-thinking”	Chat	50.5%	35
37	MCP AtlasAgents and tools · as “claude-haiku-4-5”	Agents and tools	40.2%	37
38	Document ArenaVision · as “Claude Haiku 4.5 (20251001)”	Vision	1,419	40
68	ARC-AGI-2Reasoning · as “Claude Haiku 4.5 (Thinking 32K)”	Reasoning	4.0%	92
99	Epoch ECIReasoning · as “Claude Haiku 4.5”	Reasoning	142.8	100
6	BFCLAgents and tools · stale since 2026-04-12 · as “Claude-Haiku-4-5-20251001 (FC)”	Agents and tools	68.7%	81
13	SWE-bench VerifiedCoding · stale since 2026-02-26 · as “Claude 4.5 Haiku (high)”	Coding	66.6%	39

Versions and release history

4 versions in this line since Mar 13, 2024, from Pricing, OpenRouter and the boards.

Category ranks, more models and catalog changes