Claude 4 Opus vs OpenAI o3
Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.
A
Claude 4 Opus
Anthropic
O
OpenAI o3
OpenAI
Capability radar
Normalized coding, reasoning, writing, vision, context, and value
Claude 4 OpusOpenAI o3
| Metric | Claude 4 Opus | OpenAI o3 |
|---|---|---|
| Input Price / 1M | $15.00 | $10.00 |
| Output Price / 1M | $75.00 | $40.00 |
| Combined Price / 1M | $90.00 | $50.00 |
| Context Window | 200,000 | 200,000 |
| Coding Score | 97 | 95 |
| Reasoning Score | 97 | 97 |
| Vision Score | 93 | 70 |
| Audio | No | No |
| Streaming | Yes | Yes |
| Function Calling | Yes | Yes |
| Latency Tier | reasoning | reasoning |
| Release Date | 5/22/2025 | 4/16/2025 |
Claude 4 Opus — Strengths & Weaknesses
Strengths
- Best-in-class reasoning
- Exceptional coding
- Long-form writing
Weaknesses
- Highest API cost
- 200K context only
OpenAI o3 — Strengths & Weaknesses
Strengths
- Frontier reasoning
- Vision in reasoning mode
Weaknesses
- Very expensive
- Slow inference
Use Case Verdicts
Enterprise Use
Claude 4 Opus combines strong reasoning, tooling, and context for enterprise workloads.
Agent Workflows
Claude 4 Opus is better suited for agentic workflows with tool use and coding capability.