GLM 5.3vsGPT-5 Pro
GLM 5.3 is cheaper than GPT-5 Pro at $0.6538/M vs $15/M input tokens.
| Spec | GLM 5.3 | GPT-5 Pro |
|---|---|---|
| Input price | $0.6538/M tokens | $15/M tokens |
| Output price | $2.0548/M tokens | $120/M tokens |
| Context window | 1.3M tokens | 400K tokens |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Aug 2026 | Oct 2025 |
Our Verdict
GLM 5.3
GPT-5 Pro
Not enough votes to call it. On the specs, nothing separates them.
GLM 5.3 costs 58x less per token.
Too close to call
API pricing
Cost per 1M tokens
GLM 5.3
Input
$0.65
23× cheaper
Output
$2.05
58× cheaper
GPT-5 Pro
Input
$15.00
Output
$120.00
GLM 5.3 is cheaper on both: 23× input, 58× output.
Where to run it
31 hosts, cheapest first
GLM 5.330 hosts
Baidu Qianfanfp8$0.65 in$2.05 out1M99.8% upMorph$0.71 in$2.24 out1M99.8% upRekafp8$0.76 in$2.57 out262k99.4% upSail Researchfp8$0.77 in$4.00 out1M99.9% upNovitafp8$0.78 in$2.46 out1M99.9% upio.netfp8$0.82 in$2.77 out262k99.7% up
24 more hostsFewer hosts
Phala$0.84 in$2.64 out1M99.5% upDeepInfrafp4$0.90 in$3.00 out1M98% upInferenceNetfp4$0.90 in$3.00 out1M98% upDigitalOcean$0.91 in$2.86 out1M99.8% upInceptronfp4$1.04 in$3.39 out1M99.4% upGMI Cloudfp8$1.05 in$3.30 out1M99.5% upMakorafp4$1.05 in$4.20 out980k97.3% upSiliconFlowfp8$1.12 in$3.52 out1M99.7% upAlibaba Cloud$1.19 in$3.74 out1M100% upDecartfp4$1.19 in$3.74 out1M99.1% upFriendli$1.26 in$3.96 out1M100% upAkashMLfp8$1.30 in$4.40 out1M100% upAtlasCloudfp8$1.40 in$4.40 out1M99.4% upBasetenfp4$1.40 in$4.40 out1M99.7% upCloudflare Workers AI$1.40 in$4.40 out1.3M99.8% upCrusoefp4$1.40 in$4.40 out1M98.3% upFireworks$1.40 in$4.40 out1M99.5% upMistralnvfp4$1.40 in$4.40 out1M99.7% upModal$1.40 in$4.40 out1M99% upParasailfp8$1.40 in$4.40 out1M99.1% upTogether$1.40 in$4.40 out1M98.1% upVenice$1.40 in$4.40 out1M98.8% upWafer$1.40 in$4.40 out1M99.9% upZ.aifp8$1.40 in$4.40 out1M99.9% up
GPT-5 Pro1 host
Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.
Research
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