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GLM-5.3 (Cloudflare) vs OpenAI o4-mini high

Both have similar output pricing, while GLM-5.3 (Cloudflare) offers a larger context window. Choose GLM-5.3 (Cloudflare) or OpenAI o4-mini high based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGLM-5.3 (Cloudflare)OpenAI o4-mini high
ProviderLLM GatewayNanoGPT
Input / 1M tokens$1.40$1.10
Output / 1M tokens$4.40$4.40
Context window1M200K
Parameters——
Open weightsYesNo
ReleasedAug 2026Apr 2025
Aider Polyglot score—72.0
GLM-5.3 (Cloudflare) details →OpenAI o4-mini high details →

FAQ

Is GLM-5.3 (Cloudflare) or OpenAI o4-mini high cheaper?

GLM-5.3 (Cloudflare) and OpenAI o4-mini high have comparable output pricing.

Which has the larger context window, GLM-5.3 (Cloudflare) or OpenAI o4-mini high?

GLM-5.3 (Cloudflare) has the larger context window (1M tokens).

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