DeepSeek Chat vs GPT-5.5
| DeepSeek Chat | GPT-5.5 | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Context Window | 128,000 | 400,000 |
| Release Date | 2025-05-21 | — |
| Input Price | $0.27/ 1M tokens | $5.00/ 1M tokens |
| Output Price | $1.10/ 1M tokens | $30.00/ 1M tokens |
| Best for | general chat · coding · cost-sensitive apps · Chinese content | coding · professional work · complex reasoning · agents |
Capabilities
| DeepSeek Chat | GPT-5.5 | |
|---|---|---|
| Vision | ✗ | ✓ |
| Reasoning | ✓ | ✓ |
| Coding | ✓ | ✓ |
| Audio | ✗ | ✗ |
| Tools | ✓ | ✓ |
| Long Context | ✗ | ✓ |
Ranking Comparison
| DeepSeek Chat | GPT-5.5 | |
|---|---|---|
| Overall | 77.5 | 47.1 |
| Benchmark | 85 | 0 |
| Capability | 42.9 | 85.7 |
| Price Efficiency | 100 | 100 |
| Context | 64 | 100 |
Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.
Benchmark Comparison
| DeepSeek Chat | GPT-5.5 | |
|---|---|---|
| Coding | — | — |
| Reasoning | — | — |
| Math | — | — |
| Vision | — | — |
Price History
DeepSeek Chat
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $0.27 | $1.10 |
/ 1M tokens
GPT-5.5
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $5.00 | $30.00 |
/ 1M tokens
DeepSeek Chat
DeepSeek's general chat model (V3 series), open-source friendly and cheap.
GPT-5.5
OpenAI's most advanced model for coding and professional work, with a 400K context window.
Frequently Asked Questions
Which model is better: DeepSeek Chat or GPT-5.5?
Based on overall scores, DeepSeek Chat ranks higher (77.5 vs 47.1). See the comparison table for a full breakdown.
Which model is cheaper: DeepSeek Chat or GPT-5.5?
DeepSeek Chat is cheaper: $0.27 vs $5 per 1M input tokens.
What are the capability differences between DeepSeek Chat and GPT-5.5?
GPT-5.5: Vision, Long Context