Loading page
FlagshipDeepSeek
DeepSeek V3.1
DeepSeek V3.1 is DeepSeek's flagship text-only language model with a 32K token context window for complex reasoning and generation tasks.
Context 33K
Tier Flagship
Input from
$0.250 / 1M tokens
across 4 providers
API Pricing
Cheapest on Deep Infra — 40% below avg| Provider | Input / 1M | Output / 1M | Cached / 1M |
|---|---|---|---|
| $0.250 | $0.950 | $0.130 | |
| $0.270 | $1.00 | $0.135 | |
| $0.550 | $1.65 | $0.550 | |
| $0.600 | $1.70 | - |
Prices updated daily. Last check: Sep 6, 2026
DeepSeek V3.1 pricing by provider
Input, output, and batch rates, plus alternatives, for one provider at a time.
Performance & Benchmarks
Source: Artificial Analysis →Intelligence
14.8 / 100
Math
49.7 / 100
Reasoning & Knowledge
- MMLU-Pro83.3%
- GPQA Diamond73.5%
- Humanity's Last Exam6.7%
Coding
- LiveCodeBench57.7%
Math
- AIME 202549.7%
Agentic & Tool Use
- Terminal-Bench Hard24.2%
- τ²-bench34.8%
Instruction & Long Context
- IFBench37.8%
- Long-Context Reasoning47.0%
Benchmarks measured Sep 2026. Scores are independent evaluations, not vendor-reported.
Model Details
General
- Creator
- DeepSeek
- Family
- DeepSeek
- Tier
- Flagship
- Context Window
- 33K
- Modalities
- Text
Capabilities
- Tool Calling
- No
- Open Source
- No
- Aliases
- deepseek-chat-v3-1, deepseek-chat-v3-0324
Strengths & Limitations
Strengths
- 32K token context window supports substantial document processing
- Flagship-tier model designed for complex reasoning tasks
- Text-focused architecture optimized for language understanding
- Part of established DeepSeek model family with ongoing development
- Supports streaming responses for real-time applications
Limitations
- No tool calling or function execution capabilities
- Text-only modality - no image, audio, or video input support
- Smaller context window compared to frontier models with 200K+ tokens
- Proprietary model with no open-source weights available
- Limited compared to multimodal flagship models from other providers
Key Features
•32,768 token context window
•Text generation and understanding
•Streaming response capability
•Complex reasoning and analysis
•Long-form content generation
•Multi-turn conversation support
•Document processing and summarization
About DeepSeek V3.1
DeepSeek V3.1 is the flagship language model from DeepSeek, representing the latest generation in the DeepSeek model family. As a proprietary model, it positions itself as the company's most capable offering for complex language understanding and generation tasks.
The model operates with a 32,768 token context window and focuses exclusively on text-based interactions. DeepSeek V3.1 is designed for sophisticated language tasks that require deep reasoning and coherent long-form generation, though it does not include tool calling capabilities or multimodal input support.
DeepSeek V3.1 serves users who need advanced text processing capabilities for applications like content creation, analysis, and complex reasoning tasks. While newer flagship models from other providers offer larger context windows and additional modalities, DeepSeek V3.1 provides an alternative for organizations seeking powerful language model capabilities through DeepSeek's approach to model development.
Common Use Cases
DeepSeek V3.1 is suited for applications requiring sophisticated text processing and reasoning within a 32K token context. This includes long-form content creation, document analysis and summarization, complex writing assistance, and multi-turn conversational applications. The model works well for research analysis, report generation, creative writing projects, and educational content development where advanced language understanding is needed but tool integration and multimodal capabilities are not required. Organizations building text-focused applications that need reliable reasoning capabilities may find DeepSeek V3.1 appropriate for their workflows.
Frequently Asked Questions
How much does DeepSeek V3.1 cost per million tokens?
DeepSeek V3.1 pricing varies by provider and pricing type (standard vs batch). Check the pricing table above for current rates across all providers.
What is DeepSeek V3.1 best used for?
DeepSeek V3.1 excels at complex text generation, reasoning tasks, document analysis, and long-form content creation within its 32K context window. It's well-suited for applications requiring sophisticated language understanding without needing tool calling or multimodal capabilities.
Does DeepSeek V3.1 support function calling or tool use?
No, DeepSeek V3.1 does not support function calling or tool execution capabilities. It focuses exclusively on text-based language understanding and generation tasks.