43 comparisons

Compare LLM models side-by-side

Every comparison below is based on real API benchmarks through LLMWise. We measure speed, quality, cost, and task-specific performance so you can pick the right model for your workload — not the one with the best marketing.

How to choose an LLM: the decision framework

Start with your task

No single model dominates every task. GPT-5.2 excels at code generation and structured output. Claude Sonnet 4.5 leads in nuanced writing and long-form reasoning. Gemini 3 Flash is the fastest for real-time features. DeepSeek V3 offers strong reasoning at a fraction of the cost.

Our best-for rankings show which model wins for coding, writing, math, summarization, and customer support — with real data, not opinions.

Then factor in constraints

After narrowing by task, consider latency requirements (sub-second? batch processing?), cost sensitivity (high-volume APIs vs. occasional queries), and whether you need vision or multimodal input.

If you are unsure, use our comparison guide to build a scoring matrix, or try LLMWise Compare mode — send the same prompt to multiple models and see which performs best on your actual data.

Head-to-head model comparisons

Each comparison covers 8 dimensions: speed, quality, cost, context length, coding, writing, reasoning, and multimodal.

Best LLMs by task

Ranked lists of the top-performing models for specific tasks, scored on real API benchmarks.

Best LLM for Coding and Software Development
Ranked: the best AI models for coding in 2026. Compare Claude, DeepSeek, GPT-5,
Best LLM for Writing and Content Creation
Which AI writes the best content? We rank GPT-5, Claude, Gemini, and more on cre
Best LLM for Math and Mathematical Reasoning
Which AI solves math problems best? We rank DeepSeek, Claude, GPT-5, and Gemini
Best AI for Customer Support and Service Chatbots
Build better support chatbots with the right LLM. We rank Claude, GPT, Gemini an
Best LLM for Document Summarization
Find the best AI for summarizing documents, articles, and research. We rank Clau
Cheapest LLM API: Best Value AI Models for Developers
Compare the cheapest AI APIs by cost per token, quality per dollar, and rate lim
Fastest LLM API: Lowest Latency AI Models
Which AI API has the lowest latency? We benchmark time to first token, tokens pe
Best LLM API for Startups and Early-Stage Teams
Which AI API should your startup use? We compare setup speed, cost, flexibility,
Free LLM API: Best Free AI APIs for Developers
The best free AI APIs for developers in 2026. Compare free tiers, rate limits, m
Best LLM for AI Agents and Agentic Workflows
Which AI is best for building agents? We rank Claude, GPT-5, Gemini, DeepSeek, a
Best LLM for RAG (Retrieval-Augmented Generation)
Which AI is best for RAG pipelines? We rank Claude, GPT-5, Gemini, and DeepSeek
Best LLM for SQL Generation and Database Queries
Which AI writes the best SQL? We rank GPT-5, Claude, DeepSeek, and Gemini on que
Best LLM for Translation and Multilingual Tasks
Which AI produces the best translations? We rank GPT-5, Gemini, Claude, and Mist
AI Gateway: One API for Every LLM
Ranked: the best AI gateways for production in 2026. Compare LLMWise, OpenRouter
LLM Gateway: Route to Any Model from One Endpoint
Ranked: best LLM gateways for routing, failover, and cost control. Compare LLMWi
LLM Router: Intelligent Model Selection for Every Request
Ranked: best LLM routers for intelligent model selection. Compare cost-based, la
LLM API: One Integration, Every Major Model
Ranked: best LLM APIs for developers. Compare LLMWise, OpenRouter, Together AI,
LLM Leaderboard: Ranked by Real-World Performance
Ranked: the best LLMs of 2026 across coding, writing, reasoning, and speed. Real
AI Sandbox: Test Every Major LLM in One Place
Test GPT-5.2, Claude Sonnet 4.5, Gemini 3 Flash, DeepSeek and more in one free A
Claude Playground: Test Claude Sonnet, Haiku & Opus Free
Try Claude Sonnet, Haiku and Opus free online. Compare Claude against GPT, Gemin
AI Ops Platform: Production-Grade LLM Operations
Ranked: the best AI ops platforms for LLM operations in 2026. Compare routing, f
Best AI in 2026: Which Model Should You Actually Use?
Which AI model is actually the best in 2026? We rank Claude, GPT, Gemini, DeepSe
Free AI API Key: Access Every Major Model Without a Credit Card
Get a free AI API key with no credit card required. Compare free tiers from LLMW
AI Agent Platform: Build Reliable Multi-Model Agents
Ranked: the best AI agent platforms for building reliable, production-grade agen
AI Prompt Library: Battle-Tested Prompts for Every Task
Battle-tested AI prompt templates for GPT-5.2, Claude Sonnet 4.5, and Gemini 3 F

Model matchups by task

Focused comparisons of two models for a specific task — coding, writing, math, support, data analysis, or summarization.

Compare models on your own prompts

LLMWise Compare mode sends the same prompt to up to 9 models simultaneously. See which performs best on your actual data — not synthetic benchmarks.

Start free — 20 credits