Anthropic: Claude Haiku 5.5✓ Catalog verified
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Overview
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Access: available through the official Anthropic API. Context window: 1M.
Specifications
| API identifier | anthropic/claude-haiku-5.5 |
| Provider | Anthropic |
| Model type | Multimodal LLM |
| Context window | 1M catalog |
| Input modalities | text · image · file |
| Output modalities | text |
| Released | Oct 7, 2026 |
| Tokenizer | Claude |
| Moderated | Yes |
| Architecture modality | text+image+file->text |
Pricing
Live pricing components for anthropic/claude-haiku-5.5 as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $1e-7 | $0.10 / 1M | Per input token |
| Completion tokens | $5e-7 | $0.50 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | N/A | N/A | Per image unit |
| Web search fee | $0.01 | $0.010000 | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$0.15Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | ✓ Supported | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | ✓ Supported | Supports tools / function calling |
| Self-Hosting | Not advertised | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call Anthropic: Claude Haiku 5.5 through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="anthropic/claude-haiku-5.5",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| Amazon: Nova 2 Lite | Amazon | 1M | $0.30 | View → |
| Amazon: Nova Premier 1.0 | Amazon | 1M | $2.50 | View → |
Head-to-head comparisons
Side-by-side breakdowns of Anthropic: Claude Haiku 5.5 against other frontier models.
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Anthropic: Claude Haiku 5.5 cost?
$0.10 per 1M input tokens and $0.50 per 1M output tokens on the official Anthropic API.
What is the context window of Anthropic: Claude Haiku 5.5?
Anthropic: Claude Haiku 5.5 supports up to 1M tokens of context.
Does Anthropic: Claude Haiku 5.5 support tool / function calling?
Yes, Anthropic: Claude Haiku 5.5 supports tool / function calling — you can register tools and the model will emit structured tool calls.
How do I access Anthropic: Claude Haiku 5.5?
Use the official Anthropic API with the model id `anthropic/claude-haiku-5.5`. See the Quick start section above for code examples.