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Comparison of GLM-5.3-Flash, Step-5-Preview, OpenAI: GPT-6 Luna
3 modelszai-orgGLM-5.3-FlashRemove ×stepfun-aiStep-5-PreviewRemove ×openaiOpenAI: GPT-6 LunaRemove ×
What’s differentGLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context…600B total and 27B active parameters; accepts images and video, with FP8 and BF16 weights for deployment.Can turn reasoning off for high-volume requests; Chat Completions tool calls require reasoning_effort=none.
DateAug 26, 2026ReleasedSep 18, 2026ReleasedSep 22, 2026Released
Listed rate$0.06 in / $1.80 out/ 1M tokensReka · via OpenRouter · all routes ↗reka$1.00 in / $2.70 out/ 1M tokensDeepInfra · all routes ↗$0.10 in / $0.50 out/ 1M tokensAzure · via OpenRouter · all routes ↗azure · prompt ≤ 272000 tokens
Provider endpoints46 endpoints →6 endpoints →9 endpoints →
AA Intelligence ↗4.3.241.81 ↗Effort: maxIndependent result43.73 ↗Effort not specifiedIndependent result38.12 ↗Effort: max · MaxIndependent result
AA-Briefcase ↗1.11,452.63 ↗Effort: maxIndependent result1,424.32 ↗Effort not specifiedIndependent result1,334.83 ↗Effort: max · MaxIndependent result
GDPval-AA ↗2.11,642.18 ↗Effort: maxIndependent result1,586.63 ↗Effort not specifiedIndependent result1,431.86 ↗Effort: max · MaxIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collection60.37% ↗Effort: maxIndependent result50.96% ↗Effort not specifiedIndependent result53.17% ↗Effort: max · MaxIndependent result
Terminal-Bench 4.0 · AA ↗32.83% ↗Effort: maxHarness unreportedIndependent result33.33% ↗Effort not specifiedHarness unreportedIndependent result12.63% ↗Effort: max · MaxHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collection51.62% ↗AA · Under reviewEffort: maxIndependent result58.91% ↗AA · Under reviewEffort not specifiedIndependent result54.63% ↗AA · Under reviewEffort: max · MaxIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collection39.85% ↗Effort: maxIndependent result46.48% ↗Effort not specifiedIndependent result38.51% ↗Effort: max · MaxIndependent result
GDP.pdf ↗AA Index 4.3.2 collection15.4% ↗Effort: maxIndependent result14.8% ↗Effort not specifiedIndependent result22.8% ↗Effort: max · MaxIndependent result
CritPt ↗AA Index 4.3.2 collection15.43% ↗AA · Under reviewEffort: maxIndependent result20.86% ↗AA · Under reviewEffort not specifiedIndependent result19.43% ↗AA · Under reviewEffort: max · MaxIndependent result
AA-Omniscience ↗AA Index 4.3.2 collection7.47 ↗Effort: maxIndependent result16.38 ↗Effort not specifiedIndependent result0.65 ↗Effort: max · MaxIndependent result
AA-LCR ↗1.180% ↗Effort: maxIndependent result88.33% ↗Effort not specifiedIndependent result83.33% ↗Effort: max · MaxIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)70.61% ↗Effort: max · single run · equal mean of 7 suitesIndependent result62.01% ↗Effort: max · single run · equal mean of 7 suitesIndependent result69.4% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)77.2% ↗Effort: max · single runIndependent result76.9% ↗Effort: max · single runIndependent result82.5% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)70.1% ↗Effort: max · single runIndependent result72.8% ↗Effort: max · single runIndependent result43.5% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)84% ↗Effort: max · single runIndependent result24% ↗Effort: max · single runIndependent result72% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)80.6% ↗Effort: max · single runIndependent result85.6% ↗Effort: max · single runIndependent result84.5% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)28.4% ↗Effort: max · single runIndependent result27.5% ↗Effort: max · single runIndependent result48.1% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)76.4% ↗Effort: max · single runIndependent result63.5% ↗Effort: max · single runIndependent result73.4% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)77.6% ↗Effort: max · single runIndependent result83.8% ↗Effort: max · single runIndependent result81.8% ↗Effort: max · single runIndependent result
Context window1M1M1.1M
Max output943.7K64K128K
Parameters———
Tool callingSupportedSupportedSupported
Structured outputSupportedSupportedSupported
Image inputSupportedSupportedSupported
Video inputSupportedSupportedNot reported
ReasoningSupportedSupportedSupported
Prompt cachingSupportedSupportedSupported
Open weightsSupportedSupportedNot reported

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