DeepSeek V4 Pro VS GPT-5.6 Terra
DeepSeek · OpenAI · AI Models · Updated Nov 1, 2026
Side-by-Side Breakdown
| Feature | DeepSeek V4 Pro | GPT-5.6 Terra | Winner |
|---|---|---|---|
| Input Price | $1.60/1M tkns | $1.00/1M tkns | ✓ GPT-5.6 Terra |
| Output Price | $3.20/1M tkns | $5.00/1M tkns | ✓ DeepSeek V4 Pro |
| Provider | DeepSeek | OpenAI | — |
| Category | ai-model | ai-model | — |
| context window | 1048576 | 1050000 | |
| modalities | text->text | text+image+file->text | |
| vision | false | true | |
| Overall Winner | 🏆 | GPT-5.6 Terra |
DeepSeek V4 Pro vs GPT-5.6 Terra: Quick Summary
GPT-5.6 Terra is the more affordable choice. DeepSeek V4 Pro costs $1.60/1M tkns vs GPT-5.6 Terra at $1.00/1M tkns (Input Price). GPT-5.6 Terra is 60.0% cheaper. Pricing verified as of Nov 1, 2026 — always confirm on the provider's official pricing page before committing.
DeepSeek V4 Pro vs GPT-5.6 Terra: Full Pricing Analysis
On headline price, GPT-5.6 Terra is the cheaper option: $1.00/1M tkns versus $1.60/1M tkns for DeepSeek V4 Pro (Input Price) — about 38% less. At a scale of one million per 1M tokens, that difference works out to roughly $1,000.00 with GPT-5.6 Terra against $1,600.00 with DeepSeek V4 Pro. For high-volume workloads that gap compounds quickly, so if your usage is predictable and large, GPT-5.6 Terra is the more economical default.
Price isn’t the whole story, though. DeepSeek V4 Pro (DeepSeek) sits at the higher price point, which is often justified by broader features, stronger delivery/SLA guarantees, or a more mature developer experience. If you need those capabilities, the premium can pay for itself. Choose GPT-5.6 Terra when cost-per-unit is the priority and your requirements are straightforward; choose DeepSeek V4 Pro when reliability, tooling, or ecosystem fit matter more than shaving the per-unit rate.
Beyond price, the two differ on context window (1048576 vs 1050000), modalities (text->text vs text+image+file->text) and vision (false vs true). Check those specs against your actual requirements before committing — the cheaper option is only the better deal if it also meets your technical needs.
Pricing shown is Input Price as published by each provider and verified Nov 1, 2026. Providers change prices and introduce free tiers and volume discounts frequently — always confirm the current rate on DeepSeek’s and OpenAI’s official pricing pages before you commit.