token.app › Compare › GPT-3.5 Turbo vs DeepSeek V4 Flash 0731
GPT-3.5 Turbo vs DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 leads on 3 of 3 shared benchmarks. DeepSeek V4 Flash 0731 is 1.1× 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-3.5 Turbo | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input $/1M | $0.500 | $0.440 |
| Output $/1M | $1.50 | $1.32 |
| Blended $/1M | $0.750 | $0.660 |
| Context window | 16K | 1.0M |
| Max output | 4K | 131K |
| Released | May 2023 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 27.2% | 91.0% |
| FrontierMath T1–3 | 0.0% | 57.5% |
| OTIS Mock AIME | 2.2% | 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-3.5 Turbo if…
- No clear advantage on the data we hold.
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.660 vs $0.750 blended
- Higher GPQA Diamond (91.0% vs 27.2%)
- Higher FrontierMath T1–3 (57.5% vs 0.0%)
- Higher OTIS Mock AIME (94.4% vs 2.2%)
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-3.5 Turbo or DeepSeek V4 Flash 0731?
Across the 3 benchmarks both models have independently-run scores for, GPT-3.5 Turbo leads on 0 and DeepSeek V4 Flash 0731 leads on 3. Benchmarks are one input — price and context window are on this page too.
Is GPT-3.5 Turbo cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.660 versus $0.750 per million tokens blended at 3:1 input:output. Input alone: $0.500 vs $0.440. Output alone: $1.50 vs $1.32.
What context windows do GPT-3.5 Turbo and DeepSeek V4 Flash 0731 have?
GPT-3.5 Turbo: 16,385 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes GPT-3.5 Turbo and DeepSeek V4 Flash 0731?
GPT-3.5 Turbo is made by OpenAI. DeepSeek V4 Flash 0731 is made by DeepSeek.