token.app › Compare › GPT-5.5 (batch) vs DeepSeek V4 Flash Latest
GPT-5.5 (batch) vs DeepSeek V4 Flash Latest
DeepSeek V4 Flash Latest is 50× cheaper per token on a blended 3:1 basis. GPT-5.5 (batch) accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-5.5 (batch) | DeepSeek V4 Flash Latest | |
|---|---|---|
| Provider | OpenAI | ~deepseek |
| Input $/1M | $2.50 | $0.090 |
| Output $/1M | $15.00 | $0.180 |
| Blended $/1M | $5.63 | $0.113 |
| Context window | 1.1M | 1.0M |
| Max output | 128K | 384K |
| Released | Apr 2026 | Aug 2026 |
| Licence | Proprietary | Proprietary |
Choose GPT-5.5 (batch) if…
- Larger context window (1.1M)
Choose DeepSeek V4 Flash Latest if…
- Costs less per token — $0.113 vs $5.63 blended
- Newer model (released Aug 2026)
FAQ
Which is better, GPT-5.5 (batch) or DeepSeek V4 Flash Latest?
We do not hold independently-run benchmark scores covering both GPT-5.5 (batch) and DeepSeek V4 Flash Latest, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5.5 (batch) cheaper than DeepSeek V4 Flash Latest?
DeepSeek V4 Flash Latest is cheaper: $0.113 versus $5.63 per million tokens blended at 3:1 input:output. Input alone: $2.50 vs $0.090. Output alone: $15.00 vs $0.180.
What context windows do GPT-5.5 (batch) and DeepSeek V4 Flash Latest have?
GPT-5.5 (batch): 1,050,000 tokens. DeepSeek V4 Flash Latest: 1,048,576 tokens.
Who makes GPT-5.5 (batch) and DeepSeek V4 Flash Latest?
GPT-5.5 (batch) is made by OpenAI. DeepSeek V4 Flash Latest is made by ~deepseek.