token.app › Compare › GPT-5.6 Terra vs DeepSeek V4 Flash 0731
GPT-5.6 Terra vs DeepSeek V4 Flash 0731
GPT-5.6 Terra leads on 4 of 4 shared benchmarks. DeepSeek V4 Flash 0731 is 6.8× cheaper per token on a blended 3:1 basis. GPT-5.6 Terra accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-5.6 Terra | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input $/1M | $2.00 | $0.440 |
| Output $/1M | $12.00 | $1.32 |
| Blended $/1M | $4.50 | $0.660 |
| Context window | 1.1M | 1.0M |
| Max output | 128K | 131K |
| Released | Jul 2026 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 93.3% | 91.0% |
| FrontierMath T1–3 | 86.0% | 57.5% |
| FrontierMath T4 | 70.7% | 24.4% |
| OTIS Mock AIME | 99.7% | 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-5.6 Terra if…
- Higher GPQA Diamond (93.3% vs 91.0%)
- Higher FrontierMath T1–3 (86.0% vs 57.5%)
- Higher FrontierMath T4 (70.7% vs 24.4%)
- Higher OTIS Mock AIME (99.7% vs 94.4%)
- Larger context window (1.1M)
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.660 vs $4.50 blended
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, GPT-5.6 Terra or DeepSeek V4 Flash 0731?
Across the 4 benchmarks both models have independently-run scores for, GPT-5.6 Terra leads on 4 and DeepSeek V4 Flash 0731 leads on 0. Benchmarks are one input — price and context window are on this page too.
Is GPT-5.6 Terra cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.660 versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.440. Output alone: $12.00 vs $1.32.
What context windows do GPT-5.6 Terra and DeepSeek V4 Flash 0731 have?
GPT-5.6 Terra: 1,050,000 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes GPT-5.6 Terra and DeepSeek V4 Flash 0731?
GPT-5.6 Terra is made by OpenAI. DeepSeek V4 Flash 0731 is made by DeepSeek.