--- title: Anthropic: Claude Haiku 4.5 | Text Generation | ModelsLab description: Fast, cost-efficient large language model with a 200,000-token context window, 64,000-token output capacity, multimodal text-image input, and. url: https://modelslab.com/models/anthropic/anthropic-claude-haiku-4.5.md canonical: https://modelslab.com/models/anthropic/anthropic-claude-haiku-4.5.md type: product component: Playground/LLM/Index generated_at: 2026-06-03T20:23:56.152347Z --- Anthropic: Claude Haiku 4.5 --- [LLMs.txt](https://modelslab.com/models/open_router/anthropic-claude-haiku-4.5/llms.txt) [.md](https://modelslab.com/models/anthropic/anthropic-claude-haiku-4.5.md) Anthropic: Claude Haiku 4.5 --- Choose a prompt below to get started or type your own message Explain quantum computing in simple terms Write a Python function to sort a list Create a marketing email for a SaaS product Compare REST vs GraphQL APIs Send ### Anthropic: Claude Haiku 4.5 anthropic anthropic-claude-haiku-4.5 Copy model ID PricingInput $1.00 / 1M tokens Output $5.00 / 1M tokens API EndpointsOpenAI Compatible `https://modelslab.com/api/v7/llm/chat/completions`Endpoint Anthropic Compatible `https://modelslab.com/api/v7/llm/v1/messages`Messages `https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens `https://modelslab.com/api/v7/llm/v1/models`Models Use with Claude Code cURL Example ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses. Temperature0.7 Max Tokens1000 Top P0.9 Frequency Penalty0 Presence Penalty0 Model Info Support Related Models --- Discover similar models you might be interested in [View all LLM Models](https://modelslab.com/models?feature=llmaster) [#### alibaba\_cloud/Qwen: Qwen3.5-27B qwen-qwen3.5-27b From $1.35/M tokens](https://modelslab.com/models/alibaba_cloud/qwen-qwen3.5-27b) [#### open\_router/Qwen: Qwen3 VL 235B A22B Instruct qwen-qwen3-vl-235b-a22b-instruct From $0.54/M tokens](https://modelslab.com/models/open_router/qwen-qwen3-vl-235b-a22b-instruct) [#### open\_router/Qwen: Qwen3 Next 80B A3B Instruct qwen-qwen3-next-80b-a3b-instruct From $0.59/M tokens](https://modelslab.com/models/open_router/qwen-qwen3-next-80b-a3b-instruct) [#### open\_router/Google: Gemini 3 Flash Preview google-gemini-3-flash-preview From $1.75/M tokens](https://modelslab.com/models/open_router/google-gemini-3-flash-preview) [#### open\_router/Relace: Relace Search relace-relace-search From $2.00/M tokens](https://modelslab.com/models/open_router/relace-relace-search) [#### open\_router/Google: Gemini 3.1 Pro Preview google-gemini-3.1-pro-preview From $7.00/M tokens](https://modelslab.com/models/open_router/google-gemini-3.1-pro-preview) [#### open\_router/Sao10k: Llama 3 Euryale 70B v2.1 sao10k-l3-euryale-70b From $1.48/M tokens](https://modelslab.com/models/open_router/sao10k-l3-euryale-70b) [#### open\_router/Anthropic: Claude Opus 4.6 anthropic-claude-opus-4.6 From $15.00/M tokens](https://modelslab.com/models/open_router/anthropic-claude-opus-4.6) [#### open\_router/NVIDIA: Nemotron 3 Super nvidia-nemotron-3-super-120b-a12b From $0.27/M tokens](https://modelslab.com/models/open_router/nvidia-nemotron-3-super-120b-a12b) [#### open\_router/Writer: Palmyra X5 writer-palmyra-x5 From $3.30/M tokens](https://modelslab.com/models/open_router/writer-palmyra-x5) [#### openai/gpt-oss-20b gpt-oss-20b From $0.08/M tokens](https://modelslab.com/models/openai/gpt-oss-20b) [#### open\_router/Meta: Llama Guard 4 12B meta-llama-llama-guard-4-12b From $0.18/M tokens](https://modelslab.com/models/open_router/meta-llama-llama-guard-4-12b) [#### open\_router/Meta: Llama 3.2 11B Vision Instruct meta-llama-llama-3.2-11b-vision-instruct From $0.24/M tokens](https://modelslab.com/models/open_router/meta-llama-llama-3.2-11b-vision-instruct) [#### open\_router/Nous: Hermes 4 405B nousresearch-hermes-4-405b From $2.00/M tokens](https://modelslab.com/models/open_router/nousresearch-hermes-4-405b) [#### open\_router/IBM: Granite 4.0 Micro ibm-granite-granite-4.0-h-micro From $0.06/M tokens](https://modelslab.com/models/open_router/ibm-granite-granite-4.0-h-micro) [#### open\_router/OpenAI: GPT-4o openai-gpt-4o From $6.25/M tokens](https://modelslab.com/models/open_router/openai-gpt-4o) [#### open\_router/Nous: Hermes 4 70B nousresearch-hermes-4-70b From $0.27/M tokens](https://modelslab.com/models/open_router/nousresearch-hermes-4-70b) [#### together\_ai/Qwen3.5 9B FP8 Qwen-Qwen3.5-9B From $0.13/M tokens](https://modelslab.com/models/together_ai/Qwen-Qwen3.5-9B) Open Source Alternatives --- Explore open-source models that offer similar capabilities with full transparency and flexibility [View all open source models](https://modelslab.com/models?feature=llm&provider=open-source-models) [MU](https://modelslab.com/models/modelslab/uncensored-chat)[ModelsLab](https://modelslab.com/models/modelslab) [Modelslab: Uncensored Chat Open Source Model](https://modelslab.com/models/modelslab/uncensored-chat) About 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. Matching Claude Sonnet 4’s performance... ### Technical Specifications Model IDanthropic-claude-haiku-4.5 CategoryLLM Models TaskText Generation Price$3 per million tokens AddedNovember 3, 2025 ### Key Features - Chat completion and multi-turn conversation API - Streaming response with token-by-token output - Function calling and tool use support - System prompts and role-based messaging - JSON mode and structured output ### Quick Start Integrate Anthropic: Claude Haiku 4.5 into your application with a single API call. Get your API key from the [pricing page](https://modelslab.com/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v7/llm/chat/completions" headers = { "Content-Type": "application/json" } data = { "model_id": "anthropic-claude-haiku-4.5", "messages": [ { "role": "user", "content": "Hello!" } ], "max_tokens": 1000, "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` ### Pricing Anthropic: Claude Haiku 4.5 API costs $3.000000 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab.com/pricing) ### Use Cases - AI chatbots and virtual assistants - Code generation and developer tools - Content writing and copywriting automation - Data analysis, summarization, and extraction [Learn more about Anthropic: Claude Haiku 4.5](https://modelslab.com/anthropic-claude-haiku-45) [Browse LLM Models](https://modelslab.com/models?feature=llmaster) [More from Anthropic](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) Anthropic: Claude Haiku 4.5 FAQ --- ### What is 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. Matching Claude Sonnet 4’s performance... ### How do I use the Anthropic: Claude Haiku 4.5 API? You can integrate Anthropic: Claude Haiku 4.5 into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "anthropic-claude-haiku-4.5" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Anthropic: Claude Haiku 4.5 cost? Anthropic: Claude Haiku 4.5 costs $3.000000 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started. ### What is the Anthropic: Claude Haiku 4.5 model ID? The model ID for Anthropic: Claude Haiku 4.5 is "anthropic-claude-haiku-4.5". Use this ID in your API requests to specify this model. ### Does Anthropic: Claude Haiku 4.5 have a free tier? Yes, ModelsLab offers a free tier that lets you try Anthropic: Claude Haiku 4.5 and other AI models. Sign up to get free API credits and start building immediately. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-06-04*