Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GLM-5.1
83
GPT-OSS 20B
17
Verified leaderboard positions: GLM-5.1 #21 · GPT-OSS 20B unranked
Benchmark data for GLM-5.1 and GPT-OSS 20B is coming soon on BenchLM.
GLM-5.1
GPT-OSS 20B
$1.4 / $4.4
$0 / $0
N/A
313 t/s
N/A
0.65s
203K
128K
Benchmark data for GLM-5.1 and GPT-OSS 20B is coming soon on BenchLM.
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
GLM-5.1 is priced at $1.40 input / $4.40 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for GPT-OSS 20B. GLM-5.1 has the larger context window at 203K, compared with 128K for GPT-OSS 20B.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
GLM-5.1: $1.40 input / $4.40 output per 1M tokens GPT-OSS 20B: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Estimates at 50,000 req/day · 1000 tokens/req average.
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