token.app › Compare › GPT-4.1 Nano vs DeepSeek V4 Flash 0731
GPT-4.1 Nano vs DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 leads on 2 of 2 shared benchmarks. DeepSeek V4 Flash 0731 is 1.6× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash 0731 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-4.1 Nano | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input $/1M | $0.100 | $0.090 |
| Output $/1M | $0.400 | $0.180 |
| Blended $/1M | $0.175 | $0.113 |
| Context window | 1.0M | 1.0M |
| Max output | 33K | 384K |
| Released | Apr 2025 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 48.9% | 91.0% |
| OTIS Mock AIME | 28.9% | 94.4% |
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 GPT-4.1 Nano if…
- No clear advantage on the data we hold.
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.113 vs $0.175 blended
- Higher GPQA Diamond (91.0% vs 48.9%)
- Higher OTIS Mock AIME (94.4% vs 28.9%)
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-4.1 Nano or DeepSeek V4 Flash 0731?
Across the 2 benchmarks both models have independently-run scores for, GPT-4.1 Nano leads on 0 and DeepSeek V4 Flash 0731 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is GPT-4.1 Nano cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.113 versus $0.175 per million tokens blended at 3:1 input:output. Input alone: $0.100 vs $0.090. Output alone: $0.400 vs $0.180.
What context windows do GPT-4.1 Nano and DeepSeek V4 Flash 0731 have?
GPT-4.1 Nano: 1,047,576 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes GPT-4.1 Nano and DeepSeek V4 Flash 0731?
GPT-4.1 Nano is made by OpenAI. DeepSeek V4 Flash 0731 is made by DeepSeek.