DeepSeek-V3.1 vs GPT-5.4: Specs & Benchmark Comparison
| Characteristic | DeepSeek-V3.1 | GPT-5.4 |
|---|---|---|
| Company | DeepSeek | OpenAI |
| Release Date | January 9, 2025 | March 5, 2026 |
| Parameters | 671B | — |
| Multimodal | No | Yes |
| Context (input) | 164K | 1.0M |
| Context (output) | 164K | 128K |
| Input Price / 1M | $0.27 | $2.50 |
| Output Price / 1M | $1.00 | $15.00 |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.8 | 0.9 |
Visual Benchmark Comparison
DeepSeek-V3.1
GPT-5.4
GPQA0.8 vs 0.9
0.8
0.9
Verdict
GPT-5.4 leads in 2 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: DeepSeek-V3.1 — 0.8, GPT-5.4 — 0.9.
API Cost
DeepSeek-V3.1 is 13.8x cheaper: input $0.27/1M vs $2.50/1M tokens.
Context Window
GPT-5.4 supports a larger context: 1M vs 164K tokens.
Recency
GPT-5.4 is newer: released 3/5/2026 vs 1/9/2025.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V3.1 or GPT-5.4?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — DeepSeek-V3.1 or GPT-5.4?
DeepSeek-V3.1 is cheaper for input: $0.27 per 1M tokens vs $2.50.
Which has a larger context window — DeepSeek-V3.1 or GPT-5.4?
GPT-5.4 supports a larger context: 1,000,000 tokens vs 163,840.
The DeepSeek-V3.1 and GPT-5.4 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V3.1 or GPT-5.4 page. See also the complete list of AI model comparisons.