gpt-5-chat vs qwen3-235b-a22b-instruct-2507 Benchmark Comparison

Direct benchmark comparison between gpt-5-chat and qwen3-235b-a22b-instruct-2507 based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
gpt-5-chat	1426	$0.00000125	80
qwen3-235b-a22b-instruct-2507	1423	$7.1e-8	8

*These models represent the Pareto Frontier (optimal cost-to-performance).*

Comparison Summary: These models are highly competitive, with a negligible Elo gap of only 3 points. The choice between them should be driven by specific API features or provider preference. However, neither model is currently Pareto-optimal. Developers looking for peak efficiency should investigate gemini-3.1-pro-preview, which offers a superior benchmark-to-price ratio.