OpenAI vs Anthropic: API Pricing and Model Comparison
OpenAI and Anthropic are the two leading AI providers. Here's how their pricing, models, and capabilities compare.
Pricing data sourced from our catalog. Check data sources for provenance and freshness.
Quick comparison
Here's a side-by-side comparison of the two providers:
| Feature | OpenAI | Anthropic |
|---|---|---|
| Model count | 145 | 24 |
| Cheapest chat model | $0.45 | $1.50 |
| Reasoning models | 36 | 22 |
| Cheapest reasoning | $0.45 | $6.00 |
Cost comparison by workload
Let's compare monthly costs for different workloads using the cheapest available models:
Budget chatbot
RAG application
Coding agent
For more details on how context length affects pricing, see the context window pricing guide. To estimate costs for your specific workload, use the cost calculator.
Model strengths
OpenAI strengths
- Broadest model catalog: Chat, embedding, image, audio, and moderation models
- Reasoning models: o3, o4-mini for complex reasoning tasks
- Multimodal: GPT-4o for text, image, and audio processing
- Developer tools: Codex for code generation and analysis
Anthropic strengths
- Safety focus: Constitutional AI for reliable, safe outputs
- Long context: 200K token context windows across all models
- Reasoning: Claude Opus 4 for complex analysis
- Code: Strong coding capabilities across model family
Want to compare other providers? See Google vs DeepSeek or Mistral vs OpenAI. For a broader view, check the cross-provider pricing comparison.
When to choose OpenAI
- You need image, audio, or multimodal capabilities
- You want the broadest selection of model types
- You need reasoning models for complex tasks
- You want established ecosystem and tooling
When to choose Anthropic
- Safety and reliability are top priorities
- You need consistent, predictable outputs
- You work with long documents or conversations
- You want strong coding capabilities
For use-case specific recommendations, see chatbot models, RAG models, or coding agent models.
Compare side by side
Ready to compare specific models? Use our tools:
Related guides
Cross-provider pricing comparison
How all major providers compare on pricing and capabilities.
OpenAI use-case guide
Model catalog, pricing tiers, and cost optimization strategies for OpenAI.
Anthropic use-case guide
Model catalog, pricing tiers, and cost optimization strategies for Anthropic.
Hidden costs of LLM APIs
Rate limits, latency, evaluation overhead, and vendor risk beyond per-token pricing.
Model routing cascade
When to use budget vs premium models across providers.
OpenAI vs DeepSeek comparison
Compare OpenAI and DeepSeek API pricing, model catalogs, and capabilities.
Anthropic vs Google comparison
Compare Anthropic and Google API pricing, model catalogs, and capabilities.
Frequently asked questions
Which provider is cheaper?
It depends on your workload. OpenAI often has cheaper entry-level models, while Anthropic can be more cost-effective for long-context applications.
Which is better for coding?
Both are excellent. OpenAI offers Codex and o3 for code, while Anthropic's Claude models are strong across the board for coding tasks.
Can I use both providers?
Yes, many applications use both providers for different tasks. Our compare tool helps you evaluate models from both providers side by side.