Coding Agents Cost Optimization Evals Benchmarks Qwen 3D Pricing & limits GPT-6.1 Sol

Code Arena

Build & Test with AI Coding Models

A coding-model evaluation arena where users compare models by having them produce code and vote on results; its coding and frontend comparisons support leaderboard evaluation.

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newsSECONDARY2026-09-30

GPT-6.1 Sol scores 86.3% on MathArena BrokenArXiv

GPT-6.1 Sol scored 86.3% on MathArena BrokenArXiv, 78.6% on Braintrust problem solving, and third in Code Arena WebDev. A user also reports that it outperformed its mini-SWE result in Codex.

releaseSECONDARY2026-09-01

Alibaba releases Qwen3.8-Max-0902 with 1M-token context

Alibaba released Qwen3.8-Max-0902 through QwenCloud with a 1M-token context window and 2.4T parameters. The company prices input at $2 per million tokens and says the model leads Code Arena's WebDev leaderboard.

newsSECONDARY2026-07-18

Code Arena users report Kaleb shows Qwen-like token quirks

Multiple testers reported Kaleb and torenia-alpha appearing in Code Arena/LMArena, and several pointed to Qwen-like token quirks in Kaleb. Follow-up tests described strong 3D output and a late-2025 or early-2026 cutoff, but the model identity remains unconfirmed.