GPT-5.1 Codex mini alternatives
Looking for an alternative to GPT-5.1 Codex mini? Below are the top 10 AI tools on Listof.Best, ranked by popularity — including Ling 3.0 Flash Sante, Qwen3.6 35B, GPT-6 Astra. Each is data-gated with verified pricing, features and a popularity score so you can compare at a glance.
Best GPT-5.1 Codex mini alternatives
Ling 3.0 Flash Sante
Efficient model for low-latency assistance, extraction, and routine automation
Qwen3.6 35B
Open multimodal Qwen MoE for local agents that need vision, audio, and code
GPT-6 Astra
Fast variant of GPT-6 Astra for low-latency assistance and high-volume workloads.
Aion-RP 1.0
Open Llama instruction model for multilingual chat, reasoning, and coding
GLM 5.3 Flash
Native multimodal GLM model for efficient coding and long-horizon agent tasks
GLM-5.3
Flagship GLM model for long-horizon coding, agents, and complex project delivery
Kimi K2.7 Code Fast
Kimi K2.7 Code with reasoning capped to a short budget for lower latency; reasoning cannot be disabled on…
Claude Sonnet 4.5 Thinking
Balanced Claude model for coding, analysis, agent workflows, and cost control
Claude 4.5 Opus Thinking
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Claude Haiku 4.5 Thinking
Fast Claude lane for lightweight agents, office tasks, and responsive chat