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GPT-5 vs Claude Opus 4.6
A detailed comparison of GPT-5 (OpenAI) and Claude Opus 4.6 (Anthropic) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-5 | Claude Opus 4.6 | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.25 | $5.00 | +300% |
| Output / 1M tokens | $10.00 | $25.00 | +150% |
| Context window | 128K | 200K | — |
| Max output | 16.384K | 32K | — |
Benchmark Comparison
| Benchmark | GPT-5 | Claude Opus 4.6 |
|---|---|---|
| MMLU-Pro | 88.5% | 89.5% |
| HumanEval | 95% | 95% |
| GPQA | 73.5% | 75.5% |
Capabilities
| Capability | GPT-5 | Claude Opus 4.6 |
|---|---|---|
| audio | ✓ | ✗ |
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
GPT-5 Strengths
- ✓Strong all-around performance
- ✓Good price for flagship tier
- ✓Multimodal including audio
GPT-5 Weaknesses
- ✗128K context vs 200K+ for newer models
- ✗Codex variants better for pure coding
Claude Opus 4.6 Strengths
- ✓Best-in-class agentic tool use and coding
- ✓1M context available in beta (Tier 4)
- ✓Strong at following complex multi-step instructions
Claude Opus 4.6 Weaknesses
- ✗Premium pricing ($10/$37.50 at 1M context)
- ✗1M context beta is Tier 4 only
Quick Verdict
Best value: GPT-5 is the more affordable option at $1.25/$10 per 1M tokens.
Higher benchmarks: Claude Opus 4.6 scores higher on average across available benchmarks (86.7% avg).
Larger context: Claude Opus 4.6 supports 200K tokens.
Choose GPT-5 if cost matters most. Choose Claude Opus 4.6 if you need the best possible quality for complex tasks.