Model Details
Claude 3 Haiku
Quick answer: Claude 3 Haiku is Anthropic's fastest and most affordable Claude 3 model, released March 13, 2024. It scores 20.2% on LiveCodeBench, 75.2% on MMLU, and 8.00/10 on MT-Bench. With a 200K-token context window at $0.25/$1.25 per 1M tokens, it was the leading cost-efficient model in the Claude 3 family at launch.
At a Glance
Where Claude 3 Haiku leads
- Fastest Claude 3 model — lowest latency in the family
- $0.25/$1.25 per 1M tokens — highly cost-efficient
- 200K-token context window
- Vision capability at the mini price tier
- 8.00/10 MT-Bench — solid instruction following
Where it lags
- 20.2% LiveCodeBench — below Claude Haiku 3.5 and current frontier models
- 75.2% MMLU — lower than Claude Sonnet 3.x and Opus
- Superseded by Claude Haiku 3.5 ($0.80/$4) for better performance
- August 2023 knowledge cutoff — significantly outdated
Best for: Legacy integrations validated on Claude 3 Haiku; high-volume classification and summarisation tasks where maximum throughput at minimal cost is the priority.
What Claude 3 Haiku Is
Claude 3 Haiku is the small-model tier of Anthropic's Claude 3 family, released March 13, 2024 — the same day as the full Claude 3 family launch. It introduced vision capability at a cost point below all previous Claude models, targeting high-throughput production use cases.
The model was designed around near-instant responsiveness: at launch it was Anthropic's fastest model, suited for real-time user-facing applications and moderation pipelines where latency matters more than peak accuracy.
Claude Haiku 3.5 replaced Claude 3 Haiku as the recommended small-tier model in October 2024, offering substantially better performance ($0.80/$4 per 1M — more expensive but much stronger). For new deployments, Claude Haiku 3.5 is the correct choice. Claude 3 Haiku remains available for existing integrations.
Specifications
| Field | Value |
|---|---|
| Organization | Anthropic |
| Parameters | Undisclosed |
| Context window | 200,000 tokens |
| Max output | 4,096 tokens |
| License | Proprietary (API only) |
| Release date | March 13, 2024 |
| Knowledge cutoff | August 2023 |
| Modality | Text + Vision (multimodal) |
Pricing
| Input (per 1M tokens) | Output (per 1M tokens) | |
|---|---|---|
| Anthropic API | $0.25 | $1.25 |
Prompt caching available. Pricing per Anthropic pricing page.
Context Window
Claude 3 Haiku has a 200,000-token context window — roughly 150 pages of text in a single request.
Public Benchmark Scores
| Benchmark | Score | Source | Date |
|---|---|---|---|
| LiveCodeBench | 20.2% | Benchgen evaluation | 2024 |
| MMLU | 75.2% | Benchgen evaluation | 2024 |
| GSM8K | 88.9% | Benchgen evaluation | 2024 |
| MT-Bench | 8.00 / 10 | Benchgen evaluation | 2024 |
Claude 3 Haiku vs Alternatives
| Model | Context | MMLU | LiveCodeBench | Price (in/out per 1M) |
|---|---|---|---|---|
| Claude 3 Haiku | 200K | 75.2% | 20.2% | $0.25 / $1.25 |
| Claude Haiku 3.5 | 200K | — | — | $0.80 / $4 |
| GPT-4o mini | 128K | — | 27.5% | $0.15 / $0.60 |
| Gemini 2.5 Flash | 1M | — | 61.9% | $0.15 / $0.60 |
For new deployments, Claude Haiku 3.5 provides significantly better performance. GPT-4o mini and Gemini 2.5 Flash offer better price/performance in their respective tiers.
Use Claude 3 Haiku via API
import anthropic
client = anthropic.Anthropic(api_key="YOUR_API_KEY")
message = client.messages.create(
model="claude-3-haiku-20240307",
max_tokens=1024,
messages=[{"role": "user", "content": "Classify this support ticket..."}],
)
print(message.content)Related Models & Benchmarks
- Compare: Claude Haiku 3.5 · Claude Sonnet 3.x · GPT-4o mini
- Benchmarks: LiveCodeBench · MMLU · MT-Bench
Frequently Asked Questions
What is Claude 3 Haiku?
Claude 3 Haiku is Anthropic's fastest Claude 3 model, released March 2024. It supports 200K-token context and vision input at $0.25/$1.25 per 1M tokens. It has been superseded by Claude Haiku 3.5 for new deployments.What is Claude 3 Haiku's context window?
Claude 3 Haiku supports a 200,000-token context window with up to 4,096 output tokens.How much does Claude 3 Haiku cost?
Claude 3 Haiku costs $0.25 per 1M input tokens and $1.25 per 1M output tokens. Claude Haiku 3.5 provides significantly better performance at $0.80/$4.Should I use Claude 3 Haiku or Claude Haiku 3.5?
Claude Haiku 3.5 for new deployments — substantially better benchmark scores with a more recent knowledge cutoff, at 3× higher cost. Claude 3 Haiku is appropriate only for existing integrations where the API version (claude-3-haiku-20240307) is locked.Specs and scores sourced from Anthropic's Claude 3 announcement (March 2024) and Benchgen evaluations. Pricing cited to the Anthropic pricing page. Last updated 2026-07-24.
Benchmark Leaderboards
This model isn’t on any benchmark leaderboard yet.