GPT-5.4
OpenAI
$2.5/$15 per 1M tokens- Strong coding performance
- Excellent tool integration
- Strong agentic capabilities
Model comparison
OpenAI vs Anthropic API for Production Teams
OpenAI is the stronger default for tool integration and broad platform workflows. Anthropic is the stronger default for careful reasoning, code review, and long-form analysis.
Claude Sonnet 5
Anthropic
$3/$15 per 1M tokens- Best combination of speed and intelligence
- Fast comparative latency
- 128K max output
Head-to-head scorecard
| Dimension | GPT-5.4 | Claude Sonnet 5 | Practical read |
|---|---|---|---|
| Coding | 9.8 | 9.6 | Use this row as a directional signal, then test on your own eval set. |
| Reasoning | 9.5 | 9.5 | Tie or depends on workload. |
| Tool use | 9.7 | 9.3 | Use this row as a directional signal, then test on your own eval set. |
| Input cost / 1M | $2.5 | $3 | Use this row as a directional signal, then test on your own eval set. |
| Output cost / 1M | $15 | $15 | Tie or depends on workload. |
| Context window | 1M | 1M | Tie or depends on workload. |
Which should you pick?
- Pick GPT-5.4 when you need Coding or Agents.
- Pick Claude Sonnet 5 when you need Balanced performance or Production workloads.
- Run your own 10-task eval before standardizing. Public leaderboards are useful filters, not final answers.