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Ultimate Guide - The Best Open Source LLM for French in 2025

Author
Guest Blog by

Elizabeth C.

Our definitive guide to the best open source LLM for French in 2025. We've partnered with industry experts, tested performance on multilingual benchmarks, and analyzed architectures to uncover the very best models for French language tasks. From state-of-the-art multilingual dialogue models and reasoning-enhanced LLMs to powerful mixture-of-experts architectures, these models excel in French language understanding, generation, and real-world application—helping developers and businesses build the next generation of French AI-powered tools with services like SiliconFlow. Our top three recommendations for 2025 are Qwen3-235B-A22B, Meta-Llama-3.1-8B-Instruct, and Qwen3-30B-A3B—each chosen for their outstanding multilingual capabilities, versatility, and ability to push the boundaries of open source French language processing.



What are Open Source LLMs for French?

Open source LLMs for French are large language models specifically trained or optimized to understand, generate, and process French language text with high accuracy. Using advanced deep learning architectures and multilingual training techniques, they handle French natural language tasks including translation, dialogue, content generation, reasoning, and instruction following. These models foster collaboration, accelerate innovation in French AI applications, and democratize access to powerful language tools for French-speaking communities worldwide, enabling applications from customer service chatbots to educational platforms and enterprise solutions.

Qwen3-235B-A22B

Qwen3-235B-A22B is the latest large language model in the Qwen series, featuring a Mixture-of-Experts (MoE) architecture with 235B total parameters and 22B activated parameters. This model supports over 100 languages and dialects with strong multilingual instruction following and translation capabilities, making it exceptional for French language tasks. It demonstrates significantly enhanced reasoning capabilities and superior human preference alignment in creative writing, role-playing, and multi-turn dialogues.

Subtype:
Multilingual Chat
Developer:Qwen3
Qwen3-235B-A22B

Qwen3-235B-A22B: Multilingual Powerhouse with French Excellence

Qwen3-235B-A22B is the latest large language model in the Qwen series, featuring a Mixture-of-Experts (MoE) architecture with 235B total parameters and 22B activated parameters. This model uniquely supports seamless switching between thinking mode (for complex logical reasoning, math, and coding) and non-thinking mode (for efficient, general-purpose dialogue). It demonstrates significantly enhanced reasoning capabilities, superior human preference alignment in creative writing, role-playing, and multi-turn dialogues. The model excels in agent capabilities for precise integration with external tools and supports over 100 languages and dialects with strong multilingual instruction following and translation capabilities, making it particularly powerful for French language applications. With a 131K context length, it handles extensive French documents and conversations with ease.

Pros

  • Supports over 100 languages including excellent French capabilities.
  • MoE architecture with 235B parameters for superior performance.
  • Dual-mode operation: thinking and non-thinking modes.

Cons

  • Higher computational requirements due to large parameter count.
  • Premium pricing compared to smaller models.

Why We Love It

  • It delivers state-of-the-art French language understanding and generation with exceptional multilingual capabilities, making it the go-to choice for comprehensive French AI applications.

Meta-Llama-3.1-8B-Instruct

Meta Llama 3.1-8B-Instruct is a multilingual large language model developed by Meta, optimized for multilingual dialogue use cases including French. This 8B instruction-tuned model outperforms many available open-source and closed chat models on common industry benchmarks. Trained on over 15 trillion tokens of publicly available data, it offers excellent French language capabilities at an accessible price point from SiliconFlow.

Subtype:
Multilingual Chat
Developer:meta-llama
Meta-Llama-3.1-8B-Instruct

Meta-Llama-3.1-8B-Instruct: Affordable French Language Excellence

Meta Llama 3.1 is a family of multilingual large language models developed by Meta, featuring pretrained and instruction-tuned variants. This 8B instruction-tuned model is optimized for multilingual dialogue use cases and outperforms many available open-source and closed chat models on common industry benchmarks. The model was trained on over 15 trillion tokens of publicly available data, using techniques like supervised fine-tuning and reinforcement learning with human feedback to enhance helpfulness and safety. With strong French language support, 33K context length, and highly competitive pricing from SiliconFlow at $0.06/M tokens for both input and output, it represents an exceptional value proposition for French language applications.

Pros

  • Excellent multilingual support including French.
  • Cost-effective at $0.06/M tokens from SiliconFlow.
  • 8B parameters offer efficient deployment.

Cons

  • Smaller parameter count than flagship models.
  • Knowledge cutoff of December 2023.

Why We Love It

  • It provides excellent French language capabilities at an unbeatable price point from SiliconFlow, making advanced French AI accessible to developers and businesses of all sizes.

Qwen3-30B-A3B

Qwen3-30B-A3B is a Mixture-of-Experts (MoE) model with 30.5B total parameters and 3.3B activated parameters. This model uniquely supports seamless switching between thinking and non-thinking modes, demonstrates enhanced reasoning capabilities, and supports over 100 languages and dialects with strong multilingual instruction following and translation capabilities—making it ideal for French language applications requiring both efficiency and power.

Subtype:
Multilingual Reasoning
Developer:Qwen3
Qwen3-30B-A3B

Qwen3-30B-A3B: Efficient French Reasoning Specialist

Qwen3-30B-A3B is the latest large language model in the Qwen series, featuring a Mixture-of-Experts (MoE) architecture with 30.5B total parameters and 3.3B activated parameters. This model uniquely supports seamless switching between thinking mode (for complex logical reasoning, math, and coding) and non-thinking mode (for efficient, general-purpose dialogue). It demonstrates significantly enhanced reasoning capabilities, superior human preference alignment in creative writing, role-playing, and multi-turn dialogues. The model excels in agent capabilities for precise integration with external tools and supports over 100 languages and dialects with strong multilingual instruction following and translation capabilities. With 131K context length and efficient MoE architecture, it offers powerful French language processing at reasonable pricing from SiliconFlow ($0.4/M output, $0.1/M input tokens).

Pros

  • Efficient MoE architecture with only 3.3B active parameters.
  • Supports over 100 languages with strong French capabilities.
  • Dual-mode: thinking for reasoning, non-thinking for dialogue.

Cons

  • Smaller total parameters than flagship 235B model.
  • May require mode switching for optimal performance.

Why We Love It

  • It strikes the perfect balance between efficiency and capability for French language tasks, offering powerful reasoning and multilingual support with a cost-effective MoE architecture.

French LLM Comparison

In this table, we compare 2025's leading open source LLMs for French language tasks. Qwen3-235B-A22B offers the most comprehensive multilingual capabilities with massive scale, Meta-Llama-3.1-8B-Instruct provides exceptional value and accessibility for French applications, while Qwen3-30B-A3B delivers an optimal balance of efficiency and power through its MoE architecture. This side-by-side view helps you choose the right model for your French language AI goals, whether you prioritize scale, cost-effectiveness, or efficient reasoning.

Number Model Developer Subtype Pricing (SiliconFlow)Core Strength
1Qwen3-235B-A22BQwen3Multilingual Chat$1.42/M out, $0.35/M in100+ languages, 235B MoE
2Meta-Llama-3.1-8B-Instructmeta-llamaMultilingual Chat$0.06/M tokensBest value for French
3Qwen3-30B-A3BQwen3Multilingual Reasoning$0.4/M out, $0.1/M inEfficient MoE reasoning

Frequently Asked Questions

Our top three picks for French language applications in 2025 are Qwen3-235B-A22B, Meta-Llama-3.1-8B-Instruct, and Qwen3-30B-A3B. Each of these models stood out for their exceptional multilingual capabilities, strong French language support, and unique approach to balancing performance, efficiency, and cost-effectiveness for French language tasks.

Our in-depth analysis shows several leaders for different French language needs. For comprehensive enterprise applications requiring the highest quality French generation and reasoning, Qwen3-235B-A22B with its 235B parameters and 100+ language support is the top choice. For developers and startups needing excellent French capabilities at minimal cost, Meta-Llama-3.1-8B-Instruct offers the best value at $0.06/M tokens from SiliconFlow. For applications requiring efficient French reasoning with balanced performance and cost, Qwen3-30B-A3B provides an optimal MoE solution with dual thinking and non-thinking modes.

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