Claude 4.5 Haiku
A fast, small model delivering near-frontier coding and computer-use performance at ultra-low cost with exceptional speed and strong safety.
Claude 4.5 Haiku at a glance
Context window
200K tokens
Input price
$1
per 1M tokens
Output price
$5
per 1M tokens
Why use Claude 4.5 Haiku
Strengths, benchmarks, and where Claude 4.5 Haiku fits in your team's workflow.
1. Frontier-level coding at small-model speed
- Similar coding performance to Claude Sonnet 4 at one-third the cost.
- Runs 4-5x faster than Sonnet 4.5 for many tasks.
- Ideal for real-time pair programming, prototyping, and rapid iteration.
2. Excellent computer-use abilities
- Surpasses Claude Sonnet 4 in certain computer-control tasks.
- Great for agents requiring low-latency tool use (Chrome automation, coding agents, etc.).
3. Perfect for real-time, low-latency applications
- Chat assistants
- Customer support agents
- Interactive development loops
- Multi-agent orchestration
4. Works seamlessly with Sonnet 4.5 in hybrid agent setups
- Sonnet 4.5 plans complex workflows.
- Haiku 4.5 executes subtasks in parallel for speed and cost-efficiency.
5. High alignment & safest Claude model by metric
- Lower misaligned behavior rates than Haiku 3.5, Sonnet 4.5, and Opus 4.1.
- Limited CBRN risk → released under AI Safety Level 2 (ASL-2).
Power your team with Claude 4.5 Haiku
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by Claude 4.5 Haiku - connected to your real data and ready for your whole team. No code, no deployment.
Build internal AI tools
Describe what you need and the Appaca agent builds it - lead scorers, report generators, email drafters - with Claude 4.5 Haiku as the engine. No code, no deployment.
Give Claude 4.5 Haiku your real data
Connect the tools your team already uses - Slack, Notion, Google Sheets, Airtable, and more - so Claude 4.5 Haiku works with real context, not generic answers.
Automate recurring tasks
Schedule Claude 4.5 Haiku to run on autopilot - daily digests, weekly summaries, or real-time triggers - all managed inside your Appaca workspace.
Describe it, and it's built
Tell the Appaca agent what your team needs and it builds a working app powered by Claude 4.5 Haiku - connected to the tools you already use.
Where teams use Claude 4.5 Haiku
See how teams put Claude 4.5 Haiku to work inside Appaca - internal tools and AI agents that work around you.
Sales
Score leads, draft follow-ups, and summarise deals with Claude 4.5 Haiku doing the heavy lifting.
Explore Appaca for SalesMarketing
Draft, repurpose, and report on campaigns in your brand voice - powered by Claude 4.5 Haiku.
Explore Appaca for MarketingOperations
Automate reporting, vendor tracking, and process docs with AI built around your workflow.
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Build internal AI tools with Claude 4.5 Haiku
Describe the tool your team needs and get a working app powered by Claude 4.5 Haiku - with a built-in database, team access, and integrations. No code, no deployment.