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Anthropic · Released Oct 22, 2024

Claude Haiku 3.5

Fast Claude model for responsive assistance, classification, and lightweight agents.

  • Proprietary
  • Tool calling
  • Vision
Capability
127.2ECI · #134 of 148
Input
—No listed price
Output
—No listed price
Context
200K8K max output
Pricing

What it costs

No per-token price is published for this model yet.

No per-token price is listed for this model on models.dev.

Capability

Independent benchmarks

127.2Epoch Capabilities Index
#134 of 148 scored models
88Median 146167

The shaded band is Epoch AI’s confidence range (120.7–129.7); the tick marks the median scored model.

  • GPQA DiamondGraduate-level science questions38.1%
  • OTIS Mock AIME 2024–2025Competition mathematics4.3%

Scores from Epoch AI, run independently of Anthropic.

Specifications

The details

Lab
Anthropic
Released
Oct 22, 2024
Knowledge cutoff
Jul 31, 2024
Context window
200,000 tokens
Max output
8,192 tokens
Inputs
Text, Images, PDFs
Output
Text
Reasoning
No
Tool calling
Yes
Structured output
No
Weights
Proprietary
Lab-reported

What Anthropic claims

Published by the lab at launch. Settings vary, so compare these only with care.

BenchmarkScoreSettingSource
Aider Polyglot28 percent correct—Source
Same lab

More from Anthropic

Questions

About Claude Haiku 3.5

How much does Claude Haiku 3.5 cost?

Claude Haiku 3.5 has no published per-token API price on models.dev yet.

What is the context window of Claude Haiku 3.5?

Claude Haiku 3.5 accepts up to 200,000 tokens per request and can write up to 8,192 tokens in one response.

How good is Claude Haiku 3.5?

Epoch AI gives Claude Haiku 3.5 a Capabilities Index score of 127.2 (likely range 120.7–129.7), ranking it #134 of 148 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 38.1%, OTIS Mock AIME 2024–2025 4.3%.

Is Claude Haiku 3.5 open source?

No. Claude Haiku 3.5 is proprietary; you use it through an API or partner platforms.

What inputs does Claude Haiku 3.5 support?

Claude Haiku 3.5 accepts text, images and PDFs and replies in text. It is not a dedicated reasoning model, supports tool calling.

When was Claude Haiku 3.5 released?

Anthropic released Claude Haiku 3.5 on Oct 22, 2024. Its training data runs to Jul 31, 2024.

What are the best alternatives to Claude Haiku 3.5?

The closest current models from other labs on capability, price and release date are Llama-3.3-70B-Instruct (Meta, ECI 127.3, $0.59 / $0.724), Mistral Large 2.1 (Mistral AI, ECI 128.5, $2.00 / $6.00), Qwen2.5 32B Instruct (Alibaba (Qwen), ECI 128.5, $0.70 / $2.80) and GPT-4o mini (OpenAI, ECI 126.6, $0.15 / $0.60).