token.app › Compare › DeepSeek V3.1 vs GPT-5.6 Luna
DeepSeek V3.1 vs GPT-5.6 Luna
GPT-5.6 Luna is 1.9× cheaper per token on a blended 3:1 basis. GPT-5.6 Luna accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| DeepSeek V3.1 | GPT-5.6 Luna | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Input $/1M | $0.250 | $0.100 |
| Output $/1M | $0.950 | $0.600 |
| Blended $/1M | $0.425 | $0.225 |
| Context window | 164K | 1.1M |
| Max output | 33K | 128K |
| Released | Aug 2025 | Jul 2026 |
| Licence | Open weights | Proprietary |
Choose DeepSeek V3.1 if…
- Open weights — self-hostable
Choose GPT-5.6 Luna if…
- Costs less per token — $0.225 vs $0.425 blended
- Larger context window (1.1M)
- Newer model (released Jul 2026)
FAQ
Which is better, DeepSeek V3.1 or GPT-5.6 Luna?
We do not hold independently-run benchmark scores covering both DeepSeek V3.1 and GPT-5.6 Luna, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V3.1 cheaper than GPT-5.6 Luna?
GPT-5.6 Luna is cheaper: $0.225 versus $0.425 per million tokens blended at 3:1 input:output. Input alone: $0.250 vs $0.100. Output alone: $0.950 vs $0.600.
What context windows do DeepSeek V3.1 and GPT-5.6 Luna have?
DeepSeek V3.1: 163,840 tokens. GPT-5.6 Luna: 1,050,000 tokens.
Who makes DeepSeek V3.1 and GPT-5.6 Luna?
DeepSeek V3.1 is made by DeepSeek. GPT-5.6 Luna is made by OpenAI.