gpt-5.3-codex vs claude-sonnet-5 API price comparison

Compare gpt-5.3-codex vs claude-sonnet-5 cheapest routes, input/output prices, shared platforms, cache coverage, and crawl freshness.

Latest crawl: Sep 6, 2026 路 shared platforms: 9

Price verdict

claude-sonnet-5 is about 56% 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

claude-sonnet-5 cheapest

0.36 USD/M tokens

Now Coding

Platform coverage

11/16

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

  • claude-sonnet-5

    Anthropic 路 chat

    Cheapest combined route: Now Coding at 0.36 USD/M tokens.

    Lowest input: 0.06 USD/M tokens 路 lowest output: 0.30 USD/M tokens

Shared platform comparison

Platformgpt-5.3-codexclaude-sonnet-5Lower route
Micu 0.81 USD/M tokens 0.79 USD/M tokens claude-sonnet-5
DawCode 31.50 USD/M tokens 9.00 USD/M tokens claude-sonnet-5
Yunwu 9.45 USD/M tokens 12.00 USD/M tokens gpt-5.3-codex
Qianduoduo 15.75 USD/M tokens 9.60 USD/M tokens claude-sonnet-5
PackyCode 78.75 USD/M tokens 9.60 USD/M tokens claude-sonnet-5
AIHubMix 15.75 USD/M tokens 12.00 USD/M tokens claude-sonnet-5
Atlas Cloud 15.75 USD/M tokens 12.00 USD/M tokens claude-sonnet-5
Neko 15.75 USD/M tokens 12.00 USD/M tokens claude-sonnet-5
Crazyrouter 15.75 USD/M tokens 18.00 USD/M tokens gpt-5.3-codex

Continue comparing

gpt-5.3-codex 路 claude-sonnet-5 路 ratio ranking