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Ai assistants: Meta AI (Llama 4) vs. GPT-5

Quick Verdict

Llama 4 offers a range of models with specific strengths in areas like multimodal reasoning and coding, along with robust safety measures and open-source fine-tuning capabilities. GPT-5, while still largely speculative, is expected to surpass its predecessors in reasoning and problem-solving, with a focus on improved accuracy and safety. The choice between the two depends on specific needs, with Llama 4 providing concrete options and GPT-5 promising future advancements.

Key features – Side-by-Side

AttributeMeta AI (Llama 4)GPT-5
Model Size (Number of Parameters)Llama 4 Scout: 17 billion active parameters, 109 billion total parameters. Llama 4 Maverick: 17 billion active parameters, 400 billion total parameters. Llama 4 Behemoth: 288 billion active parameters, nearly 2 trillion total parameters.Estimates vary widely, ranging from 200 billion to multiple trillions, with some speculating up to 17 trillion parameters. Some reports suggest the number of effective parameters may have plateaued.
Context Window LengthLlama 4 Scout: 10 million tokens. Llama 4 Maverick: 1 million tokens or 512,000 tokens.Expected to have a significantly larger context window than its predecessors, potentially exceeding 1 million tokens.
Training Data Sources and SizeTrained on a mix of publicly available data, licensed data, and information from Meta's products and services, including posts from Instagram and Facebook, and interactions with Meta AI. Llama 4 Scout was pre-trained on approximately 40 trillion tokens. Llama 4 Maverick was pre-trained on approximately 22 trillion tokens. The pre-training data has a cutoff date of August 2024.Expected to be extensive and diverse, potentially combining approximately 70 trillion tokens across 281 terabytes of data, including publicly available data, purchased datasets, and synthetic data.
Fine-tuning Capabilities and Customization OptionsEnables open-source fine-tuning efforts by pre-training on 200 languages. Meta developed a new training technique called MetaP that allows reliable setting of critical model hyper-parameters such as per-layer learning rates and initialization scales.Expected to offer greater control over the model's behavior and output, allowing developers to customize responses more effectively.
Multilingual Support (Number of Languages and Performance)Pre-trained on 200 languages, including over 100 with over 1 billion tokens each. Supports 12 languages: Arabic, English, French, German, Hindi, Indonesian, Italian, Portuguese, Spanish, Tagalog, Thai, and Vietnamese. Image understanding is currently limited to English.Expected to support many languages, potentially with improved fluency and accuracy compared to previous models. However, performance may still vary slightly by language.
Reasoning and Problem-Solving AbilitiesLlama 4 is designed to excel at multimodal reasoning, coding, and real-world problem-solving. Llama 4 Behemoth is focused on tasks that require high reasoning capacity and domain-specific knowledge, including mathematical problem-solving, scientific and engineering reasoning, and long-horizon decision-making across multimodal inputs.Expected to incorporate a more advanced "Chain-of-Thought" reasoning process, allowing it to perform complex logical reasoning and solve multi-step problems.
Code Generation and Debugging PerformanceLlama 4 Maverick matches advanced models in coding and reasoning tasks.Expected to enhance code generation and debugging, making software development faster and more efficient.
Hallucination Rate and FactualityAndri.ai reduces hallucinations through direct mapping of questions to verified citations.Expected to significantly reduce hallucinations and improve structured problem-solving.
Safety Measures and Bias Mitigation TechniquesIncludes data filtering, safety-specific tuning, red teaming, and bias mitigation. Utilizes Llama Guard, an input/output safety large language model based on the hazards taxonomy developed with MLCommons. Employs Prompt Guard, a classifier model trained on a large corpus of attacks, which is capable of detecting both explicitly malicious prompts (Jailbreaks) as well as prompts that contain inject inputs (Prompt Injections).Has made strides in addressing bias and ensuring fairness in its outputs, including diverse training data, bias mitigation techniques, and continuous monitoring and evaluation.
API Availability and PricingThere's no standalone API endpoint for Meta AI.Expected to be available through an API, with pricing likely higher than GPT-4 initially.
Inference Speed and Hardware RequirementsLlama 4 Scout is designed to fit on a single H100 GPU. Llama 4 Maverick can be run on a single NVIDIA H100 DGX host.Expected to be faster and more efficient than GPT-4. Training requires substantial computational resources, including high-end GPUs.
Community Support and Documentation QualityMeta provides a Developer Use Guide: AI Protections, Llama Protections solutions, and other resources.Not available
PriceNot availableNot available
Ratingsoverall: Not available, performance: Llama 4 Maverick exceeds comparable models like GPT-4o and Gemini 2.0 on coding, reasoning, multilingual, long-context, and image benchmarks. It is competitive with DeepSeek v3.1 on coding and reasoning. Llama 4 Behemoth outperforms GPT-4.5, Claude Sonnet 3.7, and Gemini 2.0 Pro on several STEM benchmarks.Not available
ProsExcels at multimodal reasoning, coding, and real-world problem-solving, Enables open-source fine-tuning efforts by pre-training on 200 languages, Pre-trained on 200 languages, Includes safety measures and bias mitigation techniques, Offers richer contextual understanding and improved responsiveness based on real-world interactionsExpected to surpass GPT-4o and GPT-o1 in complex reasoning tasks., May achieve higher accuracy in STEM fields., Includes built-in safety filters and moderation tools to help detect and prevent the generation of harmful or inappropriate content., Allows developers to integrate its capabilities into their applications.
ConsImage understanding is currently limited to English, No standalone API endpoint, Commercial use restrictions apply if exceeding 700 million monthly active users

    Overall Comparison

    Llama 4 Scout: 40 trillion tokens, Llama 4 Maverick: 22 trillion tokens. GPT-5 (expected): 70 trillion tokens.

    Pros and Cons

    Meta AI (Llama 4)

    Pros:
    • Excels at multimodal reasoning, coding, and real-world problem-solving
    • Enables open-source fine-tuning efforts by pre-training on 200 languages
    • Pre-trained on 200 languages
    • Includes safety measures and bias mitigation techniques
    • Offers richer contextual understanding and improved responsiveness based on real-world interactions
    Cons:
    • Image understanding is currently limited to English
    • No standalone API endpoint
    • Commercial use restrictions apply if exceeding 700 million monthly active users

    GPT-5

    Pros:
    • Expected to surpass GPT-4o and GPT-o1 in complex reasoning tasks.
    • May achieve higher accuracy in STEM fields.
    • Includes built-in safety filters and moderation tools to help detect and prevent the generation of harmful or inappropriate content.
    • Allows developers to integrate its capabilities into their applications.
    Cons:
    • No major disadvantages reported.

    User Experiences and Feedback