OpenAI GPT-4o vs. Claude 3.5 Haiku — Interactive Cost & Performance Calculator
Compare OpenAI GPT-4o vs Claude 3.5 Haiku side-by-side. Use our interactive calculator to estimate exact monthly costs, savings, and performance trade-offs at your scale.
OpenAI GPT-4o
Best for: Multimodal enterprise reasoning & function calling
Claude 3.5 Haiku
Best for: Fast sub-agent routing & real-time moderation
Side-by-Side Technical & Commercial Breakdown: OpenAI GPT-4o vs. Claude 3.5 Haiku
| Dimension | OpenAI GPT-4o | Claude 3.5 Haiku |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Input Price (per 1M tokens) | $2.500 | $0.800 |
| Output Price (per 1M tokens) | $10.00 | $4.00 |
| Context Window | 128K tokens | 200K tokens |
| Throughput Speed | 85 tok/s | 130 tok/s |
| License / Weights | Proprietary API | Proprietary API |
| Best Use Case | Multimodal enterprise reasoning & function calling | Fast sub-agent routing & real-time moderation |
Frequently Asked Questions
Which is more cost-effective in 2026: OpenAI GPT-4o or Claude 3.5 Haiku?
It depends on your workload volume. Use the interactive sliders above to model your exact monthly scale. OpenAI GPT-4o (Multimodal enterprise reasoning & function calling) and Claude 3.5 Haiku (Fast sub-agent routing & real-time moderation) have different unit economics that cross over as volume scales.
When should an engineering team choose OpenAI GPT-4o over Claude 3.5 Haiku?
Choose OpenAI GPT-4o when your primary priority is: Multimodal enterprise reasoning & function calling. Choose Claude 3.5 Haiku when you prioritize: Fast sub-agent routing & real-time moderation.