gpt-5.3-codex vs deepseek-v4-flash API price comparison

Compare gpt-5.3-codex vs deepseek-v4-flash cheapest routes, input/output prices, shared platforms, cache coverage, and crawl freshness.

Latest crawl: Sep 6, 2026 路 shared platforms: 7

Price verdict

deepseek-v4-flash is about 59% cheaper than gpt-5.3-codex on the cheapest listed combined route, making it the first cost-sensitive option to inspect.

gpt-5.3-codex cheapest

0.81 USD/M tokens

Micu

deepseek-v4-flash cheapest

0.33 USD/M tokens

Xcode Best

Platform coverage

11/12

Listed platform count for each model.

Cache coverage

82%/100%

Share of routes that publish cache read or write prices.

Model snapshots

  • gpt-5.3-codex

    OpenAI 路 coding

    Cheapest combined route: Micu at 0.81 USD/M tokens.

    Lowest input: 0.09 USD/M tokens 路 lowest output: 0.72 USD/M tokens

  • deepseek-v4-flash

    DeepSeek 路 chat

    Cheapest combined route: Xcode Best at 0.33 USD/M tokens.

    Lowest input: 0.11 USD/M tokens 路 lowest output: 0.22 USD/M tokens

Shared platform comparison

Platformgpt-5.3-codexdeepseek-v4-flashLower route
AIHubMix 15.75 USD/M tokens 0.42 USD/M tokens deepseek-v4-flash
Atlas Cloud 15.75 USD/M tokens 0.42 USD/M tokens deepseek-v4-flash
DMXAPI 39.09 USD/M tokens 0.60 USD/M tokens deepseek-v4-flash
Qianduoduo 15.75 USD/M tokens 0.78 USD/M tokens deepseek-v4-flash
Crazyrouter 15.75 USD/M tokens 0.90 USD/M tokens deepseek-v4-flash
PackyCode 78.75 USD/M tokens 1.51 USD/M tokens deepseek-v4-flash
Yunwu 9.45 USD/M tokens 12.00 USD/M tokens gpt-5.3-codex

Continue comparing

gpt-5.3-codex 路 deepseek-v4-flash 路 ratio ranking