Is Qwen3.5-Flash or GPT-5.3 Codex cheaper?

Qwen3.5-Flash is cheaper on output tokens ($0.26 vs $14.00 per 1M).

Which has the larger context window, Qwen3.5-Flash or GPT-5.3 Codex?

Qwen3.5-Flash has the larger context window (1M tokens).

Qwen3.5-Flash vs GPT-5.3 Codex

Qwen3.5-Flash is cheaper on output tokens, while Qwen3.5-Flash offers a larger context window. Choose Qwen3.5-Flash or GPT-5.3 Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Qwen3.5-Flash	GPT-5.3 Codex
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$0.07	$1.75
Output / 1M tokens	$0.26	$14.00
Context window	1M	400K
Parameters	—	—
Open weights	No	No
Released	Feb 2026	Feb 2026

Qwen3.5-Flash details →GPT-5.3 Codex details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.