Reasoning Models
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OpenAI o3 / o3-mini
- description: Step-by-step reasoning model for complex problem-solving across technical domains
- architecture: Transformer with Chain-of-Thought training
- key_features: External tool integration, web search, file analysis, Python execution
- use_cases: Science, programming, mathematics, business, education
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Gemini 2.5 Pro
- description: Multimodal reasoning model with Deep Think mode for hypothesis evaluation
- architecture: Transformer (multimodal)
- key_features: 1M+ token context, self-fact-checking, multimodal (text/image/audio/video)
- use_cases: Long-context synthesis, mathematical proofs, complex reasoning
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Claude 4 Opus / 3.7 Sonnet
- description: Advanced reasoning model with nuanced, human-like responses
- architecture: Transformer
- key_features: 200K token context, prompt caching, code execution tool, strong safety
- use_cases: Long-running tasks, agent workflows, coding, complex reasoning
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Grok 3
- description: Real-time reasoning model with X (Twitter) integration
- architecture: Transformer
- key_features: Real-time data access, Think mode, DeepSearch capability
- use_cases: Real-time information retrieval, step-by-step reasoning
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DeepSeek-R1
- description: Open-source reasoning model optimized for cost-efficiency
- architecture: Mixture-of-Experts (MoE) Transformer
- key_features: 671B total / 37B active parameters, open-source, competitive performance
- use_cases: Reasoning, coding tasks, research applications
General-Purpose LLMs
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GPT-4o / GPT-5
- description: Most powerful general-purpose model with multimodal capabilities
- architecture: Transformer (estimated ~1.8T parameters for GPT-4o)
- key_features: Real-time text/audio/video processing, multimodal understanding
- use_cases: General reasoning, coding, content generation, conversational AI
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Gemini 2.5 Pro
- description: Google’s flagship multimodal model with ultra-long context
- architecture: Transformer (multimodal)
- key_features: 1M+ token context, native multimodal, Google ecosystem integration
- use_cases: Long documents, multimodal tasks, enterprise workflows
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Claude 4 Opus
- description: Safety-focused model with excellent long-context handling
- architecture: Transformer
- key_features: 200K token context, strong alignment, precise instruction following
- use_cases: Long-context tasks, safety-critical applications, content generation
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LLaMA 4 (Meta)
- description: Open-source multimodal model with Scout, Maverick, Behemoth variants
- architecture: Transformer
- key_features: Multimodal input, long-context reasoning, flexible deployment scales
- use_cases: Research, commercial applications, on-device to enterprise-scale
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Mistral Large 2
- description: Open-source European model with strong coding capabilities
- architecture: Transformer (123B parameters)
- key_features: Open weights, multilingual, strong code generation
- use_cases: RAG applications, general-purpose tasks, coding
Image Generation Models
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Imagen 4 (Google)
- description: Leading photorealistic image generation with advanced lighting and texture
- architecture: Diffusion Model (U-Net backbone)
- key_features: High-quality photorealism, complex lighting handling, texture variations
- use_cases: Product visuals, advertising, concept art
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DALL-E 3 (OpenAI)
- description: Text-to-image generation with natural language understanding
- architecture: Diffusion Model
- key_features: Precise prompt following, safety filters, integration with ChatGPT
- use_cases: Creative design, content creation, visual storytelling
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Midjourney v6
- description: Artistic image generation with high aesthetic quality
- architecture: Diffusion Model
- key_features: Cinematic quality, artistic style control, community platform
- use_cases: Digital art, creative projects, design inspiration
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Stable Diffusion XL
- description: Open-source image generation with customization options
- architecture: Latent Diffusion Model (U-Net + VAE)
- key_features: Open weights, customizable, LoRA fine-tuning support
- use_cases: Custom models, research, local deployment
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FLUX.1 Pro
- description: Efficient lightweight image generation model
- architecture: Diffusion Model (12B parameters)
- key_features: High efficiency, quality-speed balance, minimal compute
- use_cases: Fast generation, resource-constrained environments
Vision-Language Models
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Gemini 2.5 Pro
- description: State-of-the-art multimodal model for vision-language tasks
- architecture: Transformer (multimodal encoder-decoder)
- key_features: Video/image/text understanding, 1M+ token context
- use_cases: Visual reasoning, image analysis, video understanding
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InternVL3-78B
- description: Advanced MLLM with 78B parameters for vision-language tasks
- architecture: Hybrid (InternViT-6B + Qwen2.5-72B)
- key_features: 72.2 MMMU score, 32K context, 100+ languages, tool usage
- use_cases: GUI agents, industrial analysis, 3D vision perception
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Qwen2.5-VL-72B
- description: Open-source multimodal model with strong benchmark performance
- architecture: Vision-Language Transformer
- key_features: 70.2 MMMU score, image/video understanding, agent functions
- use_cases: Visual question answering, document understanding
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GPT-4o (Vision)
- description: OpenAI’s multimodal model with real-time processing
- architecture: Transformer (multimodal)
- key_features: Real-time image/video understanding, conversational vision
- use_cases: Visual assistance, image captioning, multimodal chat
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GLM-4.5V
- description: Vision-language model with MoE architecture
- architecture: Mixture-of-Experts Transformer (106B total, 12B active)
- key_features: Efficient inference, strong visual reasoning
- use_cases: Visual understanding, multimodal reasoning
Reranking Models
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Zerank-1 (ZeroEntropy)
- description: Leading reranker with highest accuracy and speed
- architecture: Cross-encoder Transformer
- key_features: 95% accuracy retention, 60% cost reduction, fastest latency
- use_cases: RAG systems, search optimization, document retrieval
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Voyage Rerank 2.5
- description: Balanced reranker with quality-speed optimization
- architecture: Cross-encoder
- key_features: 2x faster than competitors, high quality, production-ready
- use_cases: RAG pipelines, semantic search
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Cohere Rerank v3.5
- description: Multilingual reranker with enterprise features
- architecture: Cross-attention Transformer
- key_features: 100+ languages, handles semi-structured data (tables, JSON, code)
- use_cases: Enterprise search, multilingual retrieval
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Qwen3-Reranker-8B
- description: Open-source reranker for scientific literature
- architecture: Transformer (8B parameters)
- key_features: 32K context length, 100+ languages, scientific focus
- use_cases: Scientific literature search, academic research
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bge-reranker-large
- description: Open-source reranker with strong performance
- architecture: Cross-encoder
- key_features: Open weights, good accuracy-speed balance
- use_cases: General reranking, RAG applications
Embedding Models
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Qwen3-Embedding-8B
- description: Top multilingual embedding model with 100+ language support
- architecture: Transformer encoder
- key_features: Multilingual, high MTEB scores, instruction-following
- use_cases: Semantic search, RAG systems, multilingual applications
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NVIDIA llama-embed-nemotron-8b
- description: Latest embedding model with strong multilingual understanding
- architecture: Transformer (fine-tuned from Llama-3.1-8B)
- key_features: Multilingual, research license, powerful text understanding
- use_cases: Multilingual RAG, research applications
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OpenAI text-embedding-3-large
- description: High-quality commercial embedding for RAG
- architecture: Transformer encoder
- key_features: Dense, multilingual, optimized for retrieval
- use_cases: RAG pipelines, semantic search, enterprise applications
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Cohere Embed v3
- description: Commercial embedding with long-context support
- architecture: Transformer
- key_features: 100+ languages, long context, balanced recall/precision
- use_cases: Enterprise search, multilingual RAG
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BGE-M3
- description: Open trilingual embedding model
- architecture: Transformer encoder
- key_features: Chinese-English-Japanese, optimized for RAG and clustering
- use_cases: Asian language applications, open-source RAG
Text-to-Speech Models
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ElevenLabs
- description: Leading TTS with natural, expressive voice generation
- architecture: Neural TTS (proprietary)
- key_features: Voice cloning, emotion control, multilingual, high naturalness
- use_cases: Audiobooks, content creation, voice assistants
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Google Cloud TTS (WaveNet)
- description: Enterprise TTS with 40+ languages and custom voices
- architecture: WaveNet (autoregressive neural network)
- key_features: Neural TTS, custom voice creation, flexible integration
- use_cases: Apps, IVR systems, accessibility tools
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Fish Speech V1.5
- description: Open-source multilingual TTS with DualAR architecture
- architecture: DualAR (dual autoregressive transformer)
- key_features: 1339 ELO score, 3.5% WER English, multilingual (300K+ hours)
- use_cases: Multilingual applications, research
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CosyVoice2-0.5B
- description: Ultra-low latency streaming TTS
- architecture: Neural TTS (0.5B parameters)
- key_features: 150ms streaming latency, real-time synthesis
- use_cases: Real-time applications, voice agents
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Azure AI Speech
- description: Enterprise TTS with HD neural voices
- architecture: Neural TTS
- key_features: Emotional tone control, custom voices, SSML support
- use_cases: Chatbots, audiobooks, accessibility, virtual assistants
Speech-to-Text Models
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Canary Qwen 2.5B
- description: Top open-source ASR with lowest WER
- architecture: Speech-Augmented Language Model (SALM) - hybrid ASR+LLM
- key_features: 5.63% WER, 418x real-time speed, 234K hours training data
- use_cases: English transcription, real-time applications
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Whisper Large V3 / V3 Turbo
- description: OpenAI’s multilingual STT with 99+ language support
- architecture: Transformer encoder-decoder (1.55B parameters)
- key_features: 99+ languages, zero-shot capability, 680K hours training
- use_cases: Multilingual transcription, diverse acoustic environments
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Deepgram Nova-3
- description: Real-time multilingual transcription with ultra-low latency
- architecture: End-to-end neural network
- key_features: Sub-200ms latency, streaming, customizable for domains
- use_cases: Live transcription, conversational AI agents
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Google Cloud Chirp
- description: Enterprise STT with 125+ languages
- architecture: Transformer foundation model
- key_features: 125+ languages, speaker diarization, word-level timestamps
- use_cases: Batch transcription, enterprise applications
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AssemblyAI Universal-2
- description: High-accuracy commercial STT with speech intelligence
- architecture: Neural network
- key_features: Sub-5% WER, 99+ languages, sentiment analysis, PII detection
- use_cases: Enterprise transcription, customer service
Document Parsing Models
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OmniParser (Microsoft)
- description: Vision-based GUI and document parsing for structured extraction
- architecture: YOLOv8 (detection) + Fine-tuned Florence-2 (description)
- key_features: UI screenshot parsing, 16-point polygon detection, OCR integration
- use_cases: GUI automation, document understanding, screen parsing
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Donut (Document Understanding Transformer)
- description: End-to-end document understanding without OCR
- architecture: Vision Transformer (encoder-decoder)
- key_features: OCR-free, handles complex layouts, multilingual
- use_cases: Document classification, information extraction
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LayoutLM / LayoutLMv3
- description: Multimodal document understanding with layout awareness
- architecture: Transformer with layout embeddings
- key_features: Text + layout + image features, pre-trained on millions of docs
- use_cases: Form understanding, document QA, receipt parsing
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Tesseract 5.x (with LSTM)
- description: Open-source OCR engine with neural network support
- architecture: LSTM-based neural network
- key_features: 100+ languages, open-source, customizable
- use_cases: Text extraction, document digitization
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PaddleOCR
- description: Multilingual OCR with high accuracy
- architecture: CNN + RNN
- key_features: 80+ languages, lightweight, fast inference
- use_cases: Text recognition, document processing
Video Generation Models
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Google Veo 3
- description: State-of-the-art video generation with 1080p output
- architecture: Diffusion Model (transformer-based)
- key_features: 8-second clips, 1080p resolution, native audio, 24fps
- use_cases: Cinematic content, creative animation, dialogue-driven scenes
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OpenAI Sora 2
- description: High-fidelity text-to-video with long sequences
- architecture: Diffusion Transformer
- key_features: Extended duration, temporal consistency, physics understanding
- use_cases: Storytelling, creative content, video synthesis
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Runway Gen-4.5
- description: Professional video generation with advanced controls
- architecture: Diffusion Model
- key_features: HD video, motion control, cinematic quality, physics understanding
- use_cases: Content creation, advertising, creative projects
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Pika 2.1
- description: 1080p video generation with scene integration
- architecture: Diffusion Model
- key_features: Pikadditions (object insertion), 1080p HD, scene blending
- use_cases: Social content, quick video creation
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Kling 2.5 Turbo
- description: Fast video generation with physics-aware realism
- architecture: Diffusion Model
- key_features: Advanced camera control, physics simulation, prompt adherence
- use_cases: Cinematic videos, technical demonstrations
Code Generation Models
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GPT-4o / GPT-5
- description: Leading general-purpose code generation model
- architecture: Transformer
- key_features: Multi-language support, context-aware suggestions, debugging
- use_cases: All-around coding, complex algorithms, refactoring
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Claude 4 Sonnet 4.5
- description: Best for large refactors and careful reasoning
- architecture: Transformer
- key_features: Repository-scale edits, safe for high-risk changes
- use_cases: Large codebases, sensitive edits, careful reasoning
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Qwen2.5-Coder-32B
- description: Versatile open-source coding model
- architecture: Transformer (32B parameters)
- key_features: 91% HumanEval, 128K context, Apache 2.0 license
- use_cases: All coding tasks, local deployment, commercial use
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Codestral-22B (Mistral AI)
- description: Speed-optimized code generation
- architecture: Transformer (22B parameters)
- key_features: Lightning-fast inference, 80+ languages, fill-in-the-middle
- use_cases: Fast code generation, code completion, production workflows
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StarCoder2-15B
- description: Open-source code completion specialist
- architecture: Transformer (15B parameters)
- key_features: 16K context, optimized for completion, IDE integration
- use_cases: Code completion, bug fixing, documentation
AI Agent Frameworks
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LangChain
- description: Modular open-source framework for building LLM applications
- architecture: Framework (Python/JavaScript)
- key_features: RAG support, memory management, tool integration, broad ecosystem
- use_cases: Custom agents, RAG applications, complex workflows
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AutoGen (Microsoft)
- description: Multi-agent conversation framework
- architecture: Event-driven multi-agent system
- key_features: Agent-to-agent collaboration, self-reflection, LLM-agnostic
- use_cases: Data science pipelines, agent collaboration, research
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CrewAI
- description: Role-based team-of-agents orchestration
- architecture: Role-based framework
- key_features: Visual design, simple setup, collaborative workflows
- use_cases: Customer service, marketing automation, service tasks
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OpenAI Agents SDK
- description: API-first GPT-centric agent builder
- architecture: API-based framework
- key_features: Tool calling, seamless model upgrades, built-in guardrails
- use_cases: GPT assistants, rapid prototyping
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Vellum
- description: Unified visual builder with enterprise governance
- architecture: Visual builder + SDK
- key_features: Built-in evals, RBAC, audit trails, flexible deployment
- use_cases: Enterprise agents, team collaboration, governance