OpenAI o3-mini is 68% cheaper than Claude 3.5 Sonnet (v2) on blended 3:1 token pricing. Claude 3.5 Sonnet (v2) costs $3.00/1M in and $15.00/1M out, while OpenAI o3-mini costs $1.10/1M in and $4.40/1M out.
Claude 3.5 Sonnet (v2) vs OpenAI o3-mini
Compare verified input/output token rates, prompt caching discounts, latency tiers, and context limits between Anthropic and OpenAI.
| Metric / Feature | Claude 3.5 Sonnet (v2) (Anthropic) | OpenAI o3-mini (OpenAI) |
|---|---|---|
| Input Price ($ / 1M Tokens) | $3.00 | $1.10 |
| Output Price ($ / 1M Tokens) | $15.00 | $4.40 |
| Prompt Caching Input Rate | $0.300/1M | $0.550/1M |
| Blended 3:1 Rate (Production) | $6.000 / 1M | $1.925 / 1M |
| Max Context Window | 200k | 200k |
| Multimodal Vision | ✅ Supported | ❌ Text Only |
| MMLU Benchmark | 88.3% | 89.5% |
| Throughput & Latency | Fast (~50 t/s) | Fast Reasoning (~60 t/s) |
| Best For | Autonomous coding, complex tool use, multi-step agent reasoning | High-throughput complex code synthesis and mathematical logic |
When to Choose Claude 3.5 Sonnet (v2)
Choose Claude 3.5 Sonnet (v2) if your workload requires autonomous coding, complex tool use, multi-step agent reasoning. Ideal for teams needing Anthropic's infrastructure and ecosystem tooling.
When to Choose OpenAI o3-mini
Choose OpenAI o3-mini if your primary objective is high-throughput complex code synthesis and mathematical logic. Ideal for scaling high-throughput pipelines with OpenAI.
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