token.app › Compare › Claude Opus 4 vs GPT-5.4 Nano
Claude Opus 4 vs GPT-5.4 Nano
GPT-5.4 Nano leads on 2 of 2 shared benchmarks. GPT-5.4 Nano is 65× cheaper per token on a blended 3:1 basis. GPT-5.4 Nano accepts the larger context window (400K).
Head to head
Blended price uses a 3:1 input:output mix
| Claude Opus 4 | GPT-5.4 Nano | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input $/1M | $15.00 | $0.200 |
| Output $/1M | $75.00 | $1.25 |
| Blended $/1M | $30.00 | $0.463 |
| Context window | 200K | 400K |
| Max output | 32K | 128K |
| Released | May 2025 | Mar 2026 |
| Licence | Proprietary | Proprietary |
| GPQA Diamond | 76.3% | 78.5% |
| OTIS Mock AIME | 64.4% | 87.8% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Claude Opus 4 if…
- No clear advantage on the data we hold.
Choose GPT-5.4 Nano if…
- Costs less per token — $0.463 vs $30.00 blended
- Higher GPQA Diamond (78.5% vs 76.3%)
- Higher OTIS Mock AIME (87.8% vs 64.4%)
- Larger context window (400K)
- Newer model (released Mar 2026)
FAQ
Which is better, Claude Opus 4 or GPT-5.4 Nano?
Across the 2 benchmarks both models have independently-run scores for, Claude Opus 4 leads on 0 and GPT-5.4 Nano leads on 2. Benchmarks are one input — price and context window are on this page too.
Is Claude Opus 4 cheaper than GPT-5.4 Nano?
GPT-5.4 Nano is cheaper: $0.463 versus $30.00 per million tokens blended at 3:1 input:output. Input alone: $15.00 vs $0.200. Output alone: $75.00 vs $1.25.
What context windows do Claude Opus 4 and GPT-5.4 Nano have?
Claude Opus 4: 200,000 tokens. GPT-5.4 Nano: 400,000 tokens.
Who makes Claude Opus 4 and GPT-5.4 Nano?
Claude Opus 4 is made by Anthropic. GPT-5.4 Nano is made by OpenAI.