claude-3-haiku-20240307 is the date-fixed version of Anthropic Claude 3 Haiku, focused on rapidly handling clear, repetitive language tasks and also able to understand content with images. It is suitable for customer service responses, translation, text classification, and information extraction, offering a public native context specification of 200K tokens; compared with the same-generation Sonnet and Opus, it is geared more toward lightweight tasks rather than difficult reasoning.
Point the Base URL to api.acedata.cloud, configure your platform API key and the model ID below, and use your compatible SDK or client.
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["ACEDATACLOUD_API_KEY"],
base_url="https://api.acedata.cloud/v1",
)
response = client.chat.completions.create(
model="claude-3-haiku-20240307",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)Choose an available protocol for this model. OpenAI SDK uses a Base URL ending in /v1; Anthropic SDK uses the root URL. See each guide for protocol-specific parameters, tools and response formats.
Clarify capacity, input and output, and invocation methods before selecting a model.
200K is the native context specification at the time Claude 3 Haiku was released. Platform image-text capabilities and response formats are subject to the public API documentation, and relevant conversation history is passed by the application according to the message structure.
Learn what claude-3-haiku-20240307 can bring to your work.
Haiku is designed for simple queries and immediate interactions, making it suitable for categorizing issues, drafting responses according to rules, translating short text, or identifying content risks. Providing business rules, tone, and output length in the prompt can narrow tasks into clear processing steps without requiring the model to handle open-ended, long-chain decisions.
The model can understand photos, charts, and technical diagrams in combination with text questions, making it suitable for extracting visible information from screenshots and organizing it into explanations or lists. When using it, clearly identify the areas, fields, and units of focus so that responses stay centered on the image itself; visual understanding delivers text, not generated or modified images.
The native context of 200K tokens provides room for jointly reading longer materials and can be used for summarization, information classification, and unstructured text extraction. It can also output JSON-formatted text as prompted for subsequent programmatic processing; clearly specify fields, missing-value conventions, and examples, and validate results on the receiving end.
Start with specific tasks to find where the model can be effective.
Provide customer questions, service policies, and existing conversations, and ask the model to identify issue categories, key information, and suggested responses. Suitable for common inquiries, cross-language communication, and ticket routing; deliverables can include customer service drafts and field lists, while refund approvals or exception commitments should remain subject to business rules and human handling.
Submit report screenshots, process diagrams, or product photos along with specific questions, such as extracting titles, explaining trends, or listing visible steps. The model returns text summaries or table drafts, suitable for preliminary organization before materials are entered into a database; key values should be checked against clear original images to avoid treating blurry content as definitive data.
Provide reviews, emails, or business records, along with classification labels, fields to extract, and output examples, to generate sentiment labels, topic categories, and record summaries. It is recommended to break complex workflows into independent tasks so each output is easy to verify; for knowledge Q&A, include relevant materials as well to reduce answers detached from business text.
Choose based on task complexity, input materials, and expected results.
Within the Claude 3 family, Haiku focuses on lightweight and fast responses, Sonnet emphasizes a balance of capability and speed, and Opus focuses on highly complex tasks. If a task has clear labels, brief deliverables, and checkable rules, Haiku can be considered first; if it involves open-ended research, complex code, or multi-condition reasoning, stronger models are more suitable for evaluation.
20240307 is a specific date version and will not become Claude 3.5 Haiku or Haiku 4.5 because of similar naming. It is better suited for retaining existing prompt templates and conducting historical version comparisons; new projects can prioritize evaluating Haiku 4.5. Anthropic has retired this version on its hosted platforms, so image-and-text tasks and output formats should be retested during migration.
Based on the characteristics of claude-3-haiku-20240307, first validate small tasks whose results can be checked.
You can ask directly: Translate short customer messages into Chinese, retain product names and order numbers, then extract the issue type. Output only the translation and fields, leaving missing information blank.
Provide a glossary and permitted fields; for high-frequency tasks, check factual preservation and format stability.
Use the full model ID claude-3-haiku-20240307, first confirm the public request format and available parameters on the API page, then connect your application. Preserve result parsing, exception handling, and relevant evidence, and use the same set of real samples to assess whether it is suitable for continued use.
Before formal use, understand the output quality and scope of capabilities.
Answers to common questions when using claude-3-haiku-20240307.
It is the date-pinned version ID for Claude 3 Haiku, and is a different version from Claude 3.5 Haiku and Claude Haiku 4.5. It is typically chosen to preserve existing prompt and task performance rather than gain the features of newer models; after upgrading, classification results, response style, and formatting stability should be rechecked.
In /v1/chat/completions, set the user message content to an array of content blocks, combining text and image_url; in the conversation endpoint, submit text and images using the message array. The text should clearly state what to extract or analyze, and image-understanding results are returned as text responses.
No. The context window accommodates input, message history, and generated content; it is not the same as the maximum output length. When using long materials, reserve space for task instructions and responses; it is better suited to focused summaries or specified fields than regenerating all materials verbatim.
Include user and assistant messages relevant to the current task in the messages for Messages or Chat Completions, handling the exact format according to the selected public API. Keep the latest code, interim conclusions, and important constraints; when necessary, resummarize longer history to avoid carrying forward outdated information.
It is suitable for trying JSON text tasks such as classification, sentiment analysis, and field extraction. Clearly specify field names, types, allowed labels, and missing-value handling in the prompt, and include brief examples. After generation, JSON parsing and business validation are still required; format-compliant generation should not be treated as a strict Schema guarantee.
Choose a development approach or application suited to this model and follow its setup guide.
↗OpenAI Chat Completions API
SDK installation, authentication and examples
↗
↗Claude Code CLI Setup Guide
Coding tool setup · requires a Coding Plan application key
↗Using Ace Data Cloud with Cherry Studio
Chat client setup · Base URL, API key and model
↗Using Ace Data Cloud with ChatBox
Chat client setup · Base URL, API key and model↗Input
$0.05per 1M tokens
Official $0.25
Output
$0.25per 1M tokens
Official $1.25
You pay$13,584for 142,800 credits · $0.0951 / credits46% OFF
You're billed in credits. Pick a top-up tier to see its per-credit rate — the larger the top-up, the cheaper each credit.
This is only a basic call example. See the full docs for more parameters and advanced usage.
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