Anthropic: Claude Haiku 4.5

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models.

Context
200K
Max output
64K
Input price
$1/1M tokens
Output price
$5/1M tokens

Capabilities

vision
tool call
structured output
reasoning
json mode
streaming
fine tuning
batch

Details

Model IDanthropic/claude-haiku-4.5
Provider OpenRouter
Creator Anthropic
Familyclaude-haiku
License—
Parameters—
Status—
Input modalitiestext, image
Output modalitiestext
Architecture—
Knowledge cutoff—
Training data cutoff—
Release date
Deprecation date—
Typechat
Reasoning tokens—
Max input—
Open weight—
Sourceofficial
Last updated

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$1
Output
$5
Cache write
—
Cache read
$0.1
Batch in
—
Batch out
—

Family Comparison: claude-haiku

ModelContextMax outPricing
Anthropic: Claude 3 Haiku200K4K$0.25$1.25
Anthropic: Claude 3.5 Haiku200K8K$0.8$4
Anthropic Claude Haiku Latest200K64K$1$5
Anthropic: Claude Haiku 4.5200K64K$1$5

API

GET/v1/models/openrouter/anthropic/claude-haiku-4.5

Anthropic: Claude Haiku 4.5

anthropic/claude-haiku-4.5

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models.

Changes · 4 entries
anthropic/claude-haiku-4.5updated9ddd19May 14, 2026, 07:26 AM
modalitiesinput["image","text"]→["text","image"]
anthropic/claude-haiku-4.5update1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
anthropic/claude-haiku-4.5update2b100acMar 23, 2026, 05:30 AM
model_typechat
release_date2025-10-15
taglineClaude Haiku 4.5 is Anthropic’s fastest and most efficien...
tools["function_calling"]
anthropic/claude-haiku-4.5create7f5c66fMar 21, 2026, 05:16 AM