models: Add support for DeepSeek models #428
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July 11, 2025 18:18
## Features - **New DeepSeek Model Provider**: Full implementation with streaming and structured output support - **OpenAI-compatible API**: Uses OpenAI client for seamless integration with DeepSeek endpoints - **Reasoning Model Support**: Handles DeepSeek-specific features like reasoning content - **Beta Features**: Support for beta endpoint and advanced DeepSeek capabilities ## Changes - `src/strands/models/deepseek.py`: New DeepSeek model provider implementation - `src/strands/models/__init__.py`: Export DeepSeekModel class - `tests_integ/models/test_model_deepseek.py`: Comprehensive integration tests (7 test cases) - `tests_integ/models/providers.py`: Add DeepSeek to provider configuration - `README.md`: Update documentation with DeepSeek examples and provider list ## Usage ```python from strands.models.deepseek import DeepSeekModel model = DeepSeekModel(api_key="your-key", model_id="deepseek-chat") Testing ✅ All 7 integration tests passing ✅ Basic conversation, structured output, streaming, tool usage ✅ Configuration updates and async operations
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Features
Changes
src/strands/models/deepseek.py: New DeepSeek model provider implementation with proper tool use streamingsrc/strands/models/__init__.py: Export DeepSeekModel classtests_integ/models/test_model_deepseek.py: Comprehensive integration tests (8 test cases)tests_integ/models/ds_test.py: Demonstration script showing tool use capabilitiesREADME.md: Update documentation with DeepSeek examples and provider listUsage
Testing
✅ All 8 integration tests passing
✅ Basic conversation, structured output, streaming, tool usage
✅ Multi-tool workflows (calculator, file_read, shell)
✅ Configuration updates and async operations
✅ Tool use streaming matches OpenAI/Ollama implementations
✅ All mypy type checks passing
Documentation PR
strands-agents/docs#135
Type of Change
New feature
How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli
I ran
hatch run prepareChecklist
[x] I have read the CONTRIBUTING document
[x] I have added any necessary tests that prove my fix is effective or my feature works
[x] I have updated the documentation accordingly
[x] I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
[x] My changes generate no new warnings
[x] Any dependent changes have been merged and published
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.