6 models
Ranked by SWE-Atlas Codebase QnA
Reasoning Tools JSON 79.1

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

openai/gpt-5.5 2026-04-23 1.05M context $5/M input $30/M output
46 providers
Reasoning Tools JSON Open weights 73.2

Strong GLM coding model for agentic engineering, terminals, and repository generation

zhipuai/glm-5.1 2026-04-07 200K context $1.4/M input $4.4/M output
45 providers
Reasoning Tools JSON Open weights 59.8

Kimi K2.6 is Moonshot AI's next-generation multimodal model, designed for long-horizon coding, coding-driven UI/UX generation, and multi-agent orchestration. It handles complex end-to-end coding tasks across Python, Rust, and Go, and...

moonshotai/kimi-k2.6 2026-04-21 262.144K context $0.95/M input $4/M output
64 providers
Reasoning Tools JSON 45.6

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

google/gemini-3.1-pro-preview 2026-02-19 1.04858M context $2/M input $12/M output
31 providers
Tools Open weights 13.1

Kimi K2.5 is Moonshot AI's native multimodal model, delivering state-of-the-art visual coding capability and a self-directed agent swarm paradigm. Built on Kimi K2 with continued pretraining over approximately 15T mixed...

moonshotai/kimi-k2.5 2026-01 262.144K context $0.45/M input $2.25/M output
46 providers
Reasoning Tools Open weights 10.3

Prior MiniMax coding model for agent workflows, office edits, and automation

minimax/MiniMax-M2.5 2026-02-12 204.8K context $0.3/M input $1.2/M output
35 providers