GPT vs Claude: Real API Cost Comparison (2026)
This is not about which model is "better" — it's about cost versus output quality for your specific workload. Both OpenAI and Anthropic offer a range of models at different price points, and the right choice depends entirely on what you're building.
Neither is universally cheaper. The answer depends on your workload.
GPT-4o Mini undercuts Claude Haiku for high-volume tasks. Claude Sonnet offers better reasoning at a comparable price to GPT-5. Run your own numbers below.
Run your own cost comparison
Cost Calculator
Pricing last updated: March 2026
Monthly estimate: ~30M input tokens + ~15M output tokens
Pay-as-you-go · No commitment · Based on real provider pricing
Compare real pricing across 12 models instantly
Pricing tiers compared
OpenAI and Anthropic both offer budget, mid-tier, and premium models. GPT-4o Mini and Claude Haiku compete at the low end. GPT-5 and Claude Sonnet compete in the mid-range. Claude Opus sits at the premium end with no direct GPT equivalent at that price point.
Where GPT wins on cost
For high-volume, lower-complexity tasks — classification, extraction, and simple Q&A — GPT-4o Mini is often the cheapest option from a major provider. Its throughput is also high, making it suitable for batch processing and real-time applications.
Where Claude wins on value
For tasks requiring careful reasoning, long-context handling, and instruction following — especially coding and analysis — Claude models tend to produce higher-quality output per dollar. Sonnet in particular hits a sweet spot of capability and cost.
How to choose the right model
- Choose cheapest — for high-volume, low-risk tasks
- Choose balanced — for most production apps
- Choose premium — when quality matters more than cost
Use the calculator above to find your best option.