2 models
Ranked by SWE-Bench Pro
Reasoning Tools JSON 64.7

xAI's Grok model for chat, coding, agentic tools, and lower hallucination risk

xai/grok-4.5 2026-07-08 500K context $2/M input $6/M output
29 providers
Reasoning Tools JSON 62.7

Cost-efficient GPT-5.6 model for fast, high-volume workloads

openai/gpt-5.6-luna 2026-07-09 1.05M context $0.2/M input $1.2/M output
45 providers