Explore AI models for writing, explaining, debugging, and reviewing code. Compare capabilities and API costs to find the best fit for your development tasks.
Featured models include deepseek-v4-flash, gpt-5.4-mini, and gpt-5.6-terra, ranked by live weekly usage when available.
Official DeepSeek V4 Flash release with enhanced agentic capabilities and integrated DSpark speculative decoding. deepseek-v4-flash by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Strong small GPT for coding subagents, quick tool use, and high-volume work. gpt-5.4-mini by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Balanced GPT-5.6 model for capable, cost-efficient everyday work. gpt-5.6-terra by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
A frontier reasoning model with a 1M-token window, built for multi-step analysis, repository-scale code review and research workflows — at a fraction of the cost of comparable frontier models. DeepSeek V4 Pro by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Cost-efficient GPT-5.6 model for fast, high-volume workloads. gpt-5.6-luna by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
The dependable workhorse of the GPT line — strong general reasoning, reliable structured output and first-class tool calling, priced so you can put it on the hot path of a production app. GPT-5.6 Sol by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Strongest Claude Opus model for coding, agents, and professional work. claude-opus-5 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Default frontier GPT for coding, computer use, research, and knowledge work. gpt-5.5 by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Claude model for creative writing, analysis, and controlled agent workflows. claude-fable-5 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents. claude-opus-4-8 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Everyday Claude agent model for coding, planning, browsing, and general work. claude-sonnet-5 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
High-end Claude for difficult coding, planning, and slower expert reasoning. claude-opus-4-6 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Stronger Opus tier for advanced software work and high-stakes reasoning. claude-opus-4-7 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Claude workhorse for coding agents, careful analysis, and production cost control. claude-sonnet-4-6 by Anthropic is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
deepseek-v3 by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
deepseek-v3.1 by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
deepseek-v3.2 by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
deepseek-v3.2-thinking by DeepSeek is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Fast Gemini workhorse for multimodal apps where latency and price matter. gemini-2.5-flash by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Lean Gemini 2.5 lane for cheap multimodal traffic and quick agents. gemini-2.5-flash-lite by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Google's proven reasoning model for coding, math, and multimodal analysis. gemini-2.5-pro by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
New Gemini flash lane bringing frontier-style multimodal reasoning to cheaper runs. gemini-3-flash-preview by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Low-latency Gemini model for high-volume multimodal and agent workloads. gemini-3.1-flash-lite by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Reasoning-first Gemini preview for agentic coding and complex problem solving. gemini-3.1-pro-preview by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Advanced Gemini model for complex reasoning, coding, and multimodal analysis. gemini-3.1-pro-preview-customtools by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Fast Gemini model balancing multimodal reasoning, tool use, and cost. gemini-3.5-flash by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Fast Gemini model balancing multimodal reasoning, tool use, and cost. gemini-3.5-flash-lite by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Fast Gemini model balancing multimodal reasoning, tool use, and cost. gemini-3.6-flash by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
High-efficiency Gemini model for agentic workflows, coding, and multimodal reasoning. gemini-3.7-flash by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
High-efficiency Gemini model for agentic workflows, coding, and multimodal reasoning. gemini-flash-latest by Google is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Mature GLM model for dependable coding, reasoning, and structured agent tasks. glm-4.7 by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
General GLM flagship for coding, analysis, and tool-heavy engineering workflows. glm-5 by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Faster GLM-5 lane for coding agents that need lower latency. glm-5-turbo by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Strong GLM coding model for agentic engineering, terminals, and repository generation. glm-5.1 by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Open flagship GLM for long-horizon coding agents and million-token context work. glm-5.2 by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Flagship GLM model for long-horizon coding, agents, and complex project delivery. glm-5.3 by Z.ai is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Affordable GPT-4.1 lane for fast coding help and structured extraction. gpt-4.1-mini by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Omni-era GPT for multimodal chat, practical coding, and general assistants. gpt-4o by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Small omni GPT for cheap multimodal assistance and production-scale traffic. gpt-4o-mini by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Small GPT-5 for responsive agents, coding help, and everyday automation. gpt-5-mini by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Agent-ready GPT for coding and computer-use workflows at a lower cost. gpt-5.4 by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation. gpt-5.4-nano by OpenAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
xAI's frontier model for long-running agents, coding, knowledge work, and visual projects. grok-4.6 by xAI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Earlier Kimi frontier model for long-context agents, coding, and multimodal work. kimi-k2.5 by Moonshot AI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Multimodal Kimi workhorse for agent loops, coding tasks, and visual context. kimi-k2.6 by Moonshot AI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Tuned for long-horizon agent work. It holds a full 1M-token context, chains tool calls without losing the thread, and keeps an entire codebase in view across a session. Kimi K3 by Moonshot AI is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
macaron-v1-coding-venti by Flatkey catalog is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
macaron-v1-tall by Flatkey catalog is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
macaron-v1-venti by Flatkey catalog is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
minimax-m2 by MiniMax is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
minimax-m2.5 by MiniMax is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
minimax-m2.7 by MiniMax is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Qwen vision-language model for visual reasoning, documents, and agent tasks. qwen3.5-27b by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Qwen vision-language model for visual reasoning, documents, and agent tasks. qwen3.5-35b-a3b by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Large open Qwen multimodal MoE for visual agents and long technical tasks. qwen3.5-397b-a17b by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Qwen vision-language model for visual reasoning, documents, and agent tasks. qwen3.5-flash by Alibaba (China) is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Qwen vision-language model for visual reasoning, documents, and agent tasks. qwen3.5-plus by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Flagship Qwen model for complex reasoning, coding, and agentic workflows. qwen3.6-max-preview by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Earlier Qwen multimodal workhorse for million-token agent and document tasks. qwen3.6-plus by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Qwen frontier model tuned for agent frameworks, coding assistants, and long tasks. qwen3.7-max by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
Multimodal Qwen workhorse for long-context agents, visual inputs, and coding. qwen3.7-plus by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
2.4-trillion-parameter MoE flagship for coding, professional work, multimodal understanding, and long-horizon agentic workflows. qwen3.8-max by Alibaba is available through the Flatkey unified API and is included in our Coding Models collection. Review its current pricing, context, and availability before integrating it.
