Is GPT-5.3 Codex (Azure) or Seed 1.6 Flash (250715) (ByteDance) cheaper?

Seed 1.6 Flash (250715) (ByteDance) is cheaper on output tokens ($0.30 vs $14.00 per 1M).

Which has the larger context window, GPT-5.3 Codex (Azure) or Seed 1.6 Flash (250715) (ByteDance)?

GPT-5.3 Codex (Azure) has the larger context window (400K tokens).

GPT-5.3 Codex (Azure) vs Seed 1.6 Flash (250715) (ByteDance)

Seed 1.6 Flash (250715) (ByteDance) is cheaper on output tokens, while GPT-5.3 Codex (Azure) offers a larger context window. Choose GPT-5.3 Codex (Azure) or Seed 1.6 Flash (250715) (ByteDance) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.3 Codex (Azure)	Seed 1.6 Flash (250715) (ByteDance)
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$1.75	$0.07
Output / 1M tokens	$14.00	$0.30
Context window	400K	256K
Parameters	—	—
Open weights	No	No
Released	Feb 2026	Jul 2025

GPT-5.3 Codex (Azure) details →Seed 1.6 Flash (250715) (ByteDance) details →

FAQ

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