gpt-5.3-codex vs claude-opus-4-8 API price comparison

Compare gpt-5.3-codex vs claude-opus-4-8 cheapest routes, input/output prices, shared platforms, cache coverage, and crawl freshness.

Latest crawl: Sep 6, 2026 路 shared platforms: 10

Price verdict

gpt-5.3-codex is about 9% cheaper than claude-opus-4-8 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-opus-4-8 cheapest

0.89 USD/M tokens

Now Coding

Platform coverage

11/20

Listed platform count for each model.

Cache coverage

82%/90%

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-opus-4-8

    Anthropic 路 chat

    Cheapest combined route: Now Coding at 0.89 USD/M tokens.

    Lowest input: 0.15 USD/M tokens 路 lowest output: 0.74 USD/M tokens

Shared platform comparison

Platformgpt-5.3-codexclaude-opus-4-8Lower route
AICoding 3.42 USD/M tokens 5.70 USD/M tokens gpt-5.3-codex
Yunwu 9.45 USD/M tokens 30.00 USD/M tokens gpt-5.3-codex
DawCode 31.50 USD/M tokens 15.00 USD/M tokens claude-opus-4-8
AIHubMix 15.75 USD/M tokens 30.00 USD/M tokens gpt-5.3-codex
Atlas Cloud 15.75 USD/M tokens 30.00 USD/M tokens gpt-5.3-codex
Crazyrouter 15.75 USD/M tokens 30.00 USD/M tokens gpt-5.3-codex
Neko 15.75 USD/M tokens 30.00 USD/M tokens gpt-5.3-codex
Qianduoduo 15.75 USD/M tokens 24.00 USD/M tokens gpt-5.3-codex
PackyCode 78.75 USD/M tokens 24.00 USD/M tokens claude-opus-4-8
DMXAPI 39.09 USD/M tokens 30.00 USD/M tokens claude-opus-4-8

Continue comparing

gpt-5.3-codex 路 claude-opus-4-8 路 ratio ranking