DeepSeek V4 Pro vs GPT-5.6 Terra
Price, context and benchmark scores side by side — every number from the live model catalogue.
| DeepSeek V4 Prodeepseek | GPT-5.6 Terraopenai | |
|---|---|---|
| Input / 1M tokens | $0.435 | $1.25 |
| Output / 1M tokens | $0.870 | $7.50 |
| 1M in + 300K out | $0.70 | $3.50 |
| Context window | 1.0M | 1.1M |
| Intelligence index | 44.3 | 55.0 |
| Coding index | 59.4 | 76.7 |
| Agentic index | 36.4 | 47.4 |
| Cheapest provider | DeepSeek | OpenAI |
| Providers serving it | 18 | 2 |
| Weights | Open | Closed |
| Image input | No | Yes |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
| Released | Apr 24, 2026 | Jul 9, 2026 |
Which one to pick
Pick DeepSeek V4 Pro if…
- Token cost matters: $0.870 per 1M output vs $7.50.
- You want the option to self-host — weights are public.
- You want provider redundancy: 18 providers serve it.
Pick GPT-5.6 Terra if…
- You want the higher general-intelligence score (55.0).
- Code quality is the priority — it leads on the coding index (76.7).
- You are running agent loops — higher agentic index (47.4).
- You need the bigger context window (1.1M).
FAQ
Is DeepSeek V4 Pro better than GPT-5.6 Terra?
GPT-5.6 Terra scores higher on general intelligence (44.3 vs 55.0), while DeepSeek V4 Pro is 8.6× cheaper per output token ($0.870 vs $7.50). For code, GPT-5.6 Terra leads (76.7 coding index). GPT-5.6 Terra takes the larger context at 1.1M.
Which is cheaper, DeepSeek V4 Pro or GPT-5.6 Terra?
DeepSeek V4 Pro, at $0.870 per 1M output tokens versus $7.50. On a 1M input + 300K output workload that is $0.70 against $3.50.
Can I self-host DeepSeek V4 Pro or GPT-5.6 Terra?
DeepSeek V4 Pro: open weights (deepseek-ai/DeepSeek-V4-Pro). GPT-5.6 Terra: closed weights, API only.