GLM 5.3vsOpenAI o4-mini
GLM 5.3 is cheaper than OpenAI o4-mini at $0.6538/M vs $1.1/M input tokens.
| Spec | GLM 5.3 | OpenAI o4-mini |
|---|---|---|
| Input price | $0.6538/M tokens | $1.1/M tokens |
| Output price | $2.0548/M tokens | $4.4/M tokens |
| Context window | 1.3M tokens | — |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Aug 2026 | Apr 2025 |
Our Verdict
GLM 5.3
OpenAI o4-miniRunner-up
Not enough votes to call it. On the specs, GLM 5.3 has the edge: bigger model tier, newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
GLM 5.3
Input
$0.65
1.7× cheaper
Output
$2.05
2.1× cheaper
OpenAI o4-mini
Input
$1.10
Output
$4.40
GLM 5.3 is cheaper on both: 1.7× input, 2.1× output.
Where to run it
31 hosts, cheapest first
GLM 5.330 hosts
DeepInfrafp4$0.56 in$2.50 out1M97.1% upMorph$0.71 in$2.24 out1M99.7% upRekafp8$0.76 in$2.57 out262k99.4% upSail Researchfp8$0.77 in$4.00 out1M99.8% upNovitafp8$0.78 in$2.46 out1M99.9% upio.netfp8$0.82 in$2.77 out262k99.8% up
24 more hostsFewer hosts
Phala$0.84 in$2.64 out1M99.4% upInferenceNetfp4$0.90 in$3.00 out1M98.2% upDigitalOcean$0.91 in$2.86 out1M99.7% upGMI Cloudfp8$0.98 in$3.08 out1M99.5% upInceptronfp4$1.03 in$3.73 out1M99.4% upMakorafp4$1.05 in$4.20 out980k97.1% upSiliconFlowfp8$1.12 in$3.52 out1M99.8% upDecartfp4$1.19 in$3.74 out1M99.2% upFriendli$1.26 in$3.96 out1M100% upAkashMLfp8$1.30 in$4.40 out1M100% upAtlasCloudfp8$1.40 in$4.40 out1M99.4% upBaidu Qianfanfp8$1.40 in$4.40 out1M99.8% upBasetenfp4$1.40 in$4.40 out1M99.8% upCloudflare Workers AI$1.40 in$4.40 out1.3M98.9% upCrusoefp4$1.40 in$4.40 out1M98.9% upFireworks$1.40 in$4.40 out1M99.5% upMistralnvfp4$1.40 in$4.40 out1M99.4% upModal$1.40 in$4.40 out1M99.1% upParasailfp8$1.40 in$4.40 out1M99.2% upTogether$1.40 in$4.40 out1M98.1% upVenice$1.40 in$4.40 out1M98.5% upWafer$1.40 in$4.40 out1M99.9% upZ.aifp8$1.40 in$4.40 out1M99.9% upAlibaba Clouddegraded$1.19 in$3.74 out1M99.5% up
OpenAI o4-mini1 host
Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.
Research
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