TL;DR: OpenAI offers wider model selection and cheaper high-volume options. Anthropic excels at long-context and nuanced tasks. The most cost-effective strategy is using both providers strategically.
Pricing Overview
Both Anthropic and OpenAI offer tiered model families with different price/performance trade-offs. Understanding these tiers is critical for optimising your AI API spend.
Compare all providers side-by-side with our AI Cost Comparison Tool.
How Much Do Claude and GPT Models Cost?
| Model | Input (per 1M tokens) | Output (per 1M tokens) | Context |
|---|---|---|---|
| GPT-4o | $2.50 | $10.00 | 128K |
| GPT-4o-mini | $0.15 | $0.60 | 128K |
| Claude Sonnet 4 | $3.00 | $15.00 | 200K |
| Claude Haiku 4.5 | $0.25 | $1.25 | 200K |
For most tasks, the per-token cost difference is less important than choosing the right model tier.
The real savings come from matching task complexity to model capability. Claude Haiku at $0.25/$1.25 per 1M tokens handles classification and extraction tasks that many teams currently route to GPT-4o.
When to Choose OpenAI
OpenAI excels for teams that:
- Need the widest model selection (GPT-4o, GPT-4o-mini, DALL-E, Whisper)
- Have existing OpenAI integrations
- Need function calling with complex tool use
GPT-4o-mini is particularly cost-effective for high-volume, lower-complexity tasks. Check our OpenAI Calculator for exact pricing.
When to Choose Anthropic
Anthropic’s Claude models are preferred for:
- Long-context tasks — 200K context window vs 128K
- Nuanced writing and analysis
- Tasks requiring careful instruction-following
- Safety-critical applications
Claude Haiku is one of the most cost-effective models for simple tasks. See our Anthropic Calculator for pricing details.
The Multi-Provider Strategy
The most cost-effective approach isn’t choosing one provider — it’s using both strategically. CostLayer helps teams implement a multi-provider strategy by tracking costs across both platforms and recommending the optimal model for each use case.
Key Takeaways
- GPT-4o and Claude Sonnet 4 are comparably priced flagships
- GPT-4o-mini and Claude Haiku are the best value for simple tasks
- Claude has a larger context window (200K vs 128K)
- A multi-provider strategy delivers the best cost efficiency
- Track both providers in one dashboard with CostLayer
Track your AI API costs in real-time → Get started with CostLayer