Claude 3.5 Haiku vs o3-mini (Reasoning)
Compare Claude 3.5 Haiku vs o3-mini (Reasoning) API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
Claude 3.5 Haiku charges $0.80/1M input and $4.00/1M output tokens, compared to o3-mini (Reasoning) at $1.10/1M input and $4.40/1M output. Claude 3.5 Haiku is 1.4x cheaper on input tokens. In benchmark reasoning, o3-mini (Reasoning) holds the higher intelligence rating (93/100). For latency-critical streaming, Claude 3.5 Haiku delivers 130 t/s (220ms TTFT) while o3-mini (Reasoning) provides 95 t/s (580ms TTFT).
Full Metric & Specification Comparison
| Metric | Claude 3.5 Haiku | o3-mini (Reasoning) | Advantage |
|---|---|---|---|
| Provider | Anthropic | OpenAI | - |
| Input Token Cost (1M) | $0.800 | $1.100 | Claude 3.5 Haiku |
| Output Token Cost (1M) | $4.000 | $4.400 | Claude 3.5 Haiku |
| Context Window | 200k tokens | 200k tokens | Tie |
| Intelligence Benchmark Score | 84/100 | 93/100 | o3-mini (Reasoning) |
| Streaming Latency | Ultra-Fast | Fast | - |
Key Architectural Takeaways
- Input Token Cost: Claude 3.5 Haiku is $0.80/1M vs o3-mini (Reasoning) at $1.10/1M
- Output Token Cost: Claude 3.5 Haiku is $4.00/1M vs o3-mini (Reasoning) at $4.40/1M
- Context Window: Claude 3.5 Haiku supports 200k tokens vs o3-mini (Reasoning) with 200k tokens
- Benchmark Intelligence Rating: Claude 3.5 Haiku scores 84/100 vs o3-mini (Reasoning) at 93/100
- Inference Latency: Claude 3.5 Haiku is rated Ultra-Fast vs o3-mini (Reasoning) rated Fast
Calculate Your Team's Exact Bill Difference
Drag the sliders below to see real-time cost divergences based on your daily token consumption.
Deploying Claude 3.5 Haiku over o3-mini (Reasoning) saves $7.50/mo ($90/yr) at this volume.
Frequently Asked Questions
Is Claude 3.5 Haiku cheaper than o3-mini (Reasoning)?
Claude 3.5 Haiku is significantly more economical, charging $0.80/1M input compared to $1.10/1M for o3-mini (Reasoning).
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Claude 3.5 Haiku. If you require peak reasoning accuracy and complex tool use, o3-mini (Reasoning) is recommended.
How does context window compare between Claude 3.5 Haiku and o3-mini (Reasoning)?
Claude 3.5 Haiku offers the larger context window (200k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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