DeepSeek V4 Pro vs GPT Realtime 2
DeepSeek V4 Pro and GPT Realtime 2 are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. DeepSeek V4 Pro has a 1M context window — about 8× the 128k of GPT Realtime 2. DeepSeek V4 Pro leads on coding, reasoning, general knowledge.
Specs side by side
| Metric | DeepSeek DeepSeek V4 Pro | OpenAI GPT Realtime 2 |
|---|---|---|
| Input price (per 1M) | $0.435 | $4 |
| Output price (per 1M) | $0.87 | $24 |
| Context window | 1M tokens | 128k tokens |
| Speed tier | balanced | ultra |
| Open weights | Yes | No |
| EU region | No | Yes |
| Free tier | No | No |
| Prompt caching | Yes | No |
| Vision input | No | No |
| Extended thinking | Yes | No |
When to choose each
Choose DeepSeek V4 Pro if…
- Cost is a priority ($0.43 / $0.87 per 1M vs $4 / $24 per 1M)
- You need 1M context (8× more than GPT Realtime 2)
- You need open weights for self-hosting or fine-tuning
- Coding is central to your workload
- Reasoning is central to your workload
Choose GPT Realtime 2 if…
- Low latency matters (ultra vs balanced)
- EU data residency is required
- You need realtime speech-to-speech
Benchmark delta
DeepSeek V4 Pro leads on
- Coding
- Reasoning
- General knowledge
- Long-context retrieval
GPT Realtime 2 leads on
GPT Realtime 2 has no meaningful benchmark lead in this pair.
FAQ — DeepSeek V4 Pro vs GPT Realtime 2
DeepSeek V4 Pro vs GPT Realtime 2 — which is better?
DeepSeek V4 Pro and GPT Realtime 2 are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. DeepSeek V4 Pro has a 1M context window — about 8× the 128k of GPT Realtime 2. DeepSeek V4 Pro leads on coding, reasoning, general knowledge. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.
How does DeepSeek V4 Pro pricing compare to GPT Realtime 2?
DeepSeek V4 Pro costs $0.43 / $0.87 per 1M vs GPT Realtime 2 at $4 / $24 per 1M. DeepSeek V4 Pro is cheaper on output tokens by roughly 2659%. Both support prompt caching, which reduces effective cost by 80-90% on repeat system prompts.
Does DeepSeek V4 Pro or GPT Realtime 2 have the bigger context window?
DeepSeek V4 Pro has a 1M-token context window — 8× the 128k context of GPT Realtime 2. Enough for entire codebases, books, or multi-document RAG.
Is there a free tier for DeepSeek V4 Pro or GPT Realtime 2?
DeepSeek V4 Pro: no — No free tier on the official API — but at $0.435/$0.87 per 1M it is near-free vs frontier peers. GPT Realtime 2: no — Paid-only.
Which is better for coding — DeepSeek V4 Pro or GPT Realtime 2?
DeepSeek V4 Pro leads on coding benchmarks (DeepSeek V4 Pro: 91/100, GPT Realtime 2: 78/100). For production coding agents also weigh tool-use performance — DeepSeek V4 Pro scores 86, GPT Realtime 2 scores 84.