GPT-4.1 vs DeepSeek V3.1
Detailed technical comparison between GPT-4.1 (OpenAI) and DeepSeek V3.1 (DeepSeek). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
GPT-4.1
1,047,576 tokensTie
Equal CapabilityTie
Equal SpeedDeepSeek V3.1
$0.25 / MTokGPT-4.1
GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...
DeepSeek V3.1
DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...
Technical Specifications
🏆 = Superior Spec| Specification | GPT-4.1 | DeepSeek V3.1 |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Context Window | 1,047,576 tokens🏆 | 163,840 tokens |
| Agent Suitability | 91/100 | N/A |
| Time to First Token (TTFT) | 250 ms | N/A |
| Deployment Model | managed api | self hostable |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-04-14 | 2025-08-21 |
API Pricing Comparison
Input Price per Million Tokens
GPT-4.1
$2.00
DeepSeek V3.1
$0.25
Output Price per Million Tokens
GPT-4.1
$8.00
DeepSeek V3.1
$0.95
💡 Cost Ratio: DeepSeek V3.1 is 8.0x cheaper per input token than GPT-4.1.
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Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
GPT-4.1 Quirks & Gotchas
- ▸Strong tool-calling reliability — good migration path from GPT-4o
- ▸Migrate to GPT-5 for larger context window and improved reasoning
DeepSeek V3.1 Quirks & Gotchas
No developer gotchas reported.
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