Side by side

See the difference.

Scores, capabilities and costs for the models you’re considering.

Scroll to compare models →

Comparison of Z.ai: GLM 5, Step-5-Preview, Anthropic: Claude Opus 5.5
3 modelsz-aiZ.ai: GLM 5Remove ×stepfun-aiStep-5-PreviewRemove ×anthropicAnthropic: Claude Opus 5.5Remove ×
What’s differentGLM-5 is Z.ai’s flagship open-source foundation model engineered for complex systems design and long-horizon agent workflows. Built for expert developers, it delivers production-grade performance on…600B total and 27B active parameters; accepts images and video, with FP8 and BF16 weights for deployment.Always-on adaptive thinking defaults to medium effort; built for sustained work across large codebases and professional documents.
DateFeb 11, 2026ListedSep 18, 2026ReleasedSep 22, 2026Released
Listed rate$0.60 in / $1.92 out/ 1M tokensGMICloud · via OpenRouter · all routes ↗gmicloud/fp8 · quantization=fp8$1.00 in / $2.70 out/ 1M tokensDeepInfra · all routes ↗$4.00 in / $20.00 out/ 1M tokensAmazon Bedrock · via OpenRouter · all routes ↗amazon-bedrock
Provider endpoints14 endpoints →6 endpoints →14 endpoints →
AA Intelligence ↗4.3.2Not reported43.73 ↗Effort not specifiedIndependent result57.62 ↗Effort: max · Max, Default FallbackIndependent result
AA-Briefcase ↗1.1Not reported1,424.32 ↗Effort not specifiedIndependent result1,802.99 ↗Effort: max · Max, Default FallbackIndependent result
GDPval-AA ↗2.1Not reported1,586.63 ↗Effort not specifiedIndependent result1,866.27 ↗Effort: max · Max, Default FallbackIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collectionNot reported50.96% ↗Effort not specifiedIndependent result69.54% ↗Effort: max · Max, Default FallbackIndependent result
Terminal-Bench 4.0 · AA ↗Not reported33.33% ↗Effort not specifiedHarness unreportedIndependent result59.6% ↗Effort: max · Max, Default FallbackHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collectionNot reported58.91% ↗AA · Under reviewEffort not specifiedIndependent result66.9% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collectionNot reported46.48% ↗Effort not specifiedIndependent result61.35% ↗Effort: max · Max, Default FallbackIndependent result
GDP.pdf ↗AA Index 4.3.2 collectionNot reported14.8% ↗Effort not specifiedIndependent result26.2% ↗Effort: max · Max, Default FallbackIndependent result
CritPt ↗AA Index 4.3.2 collectionNot reported20.86% ↗AA · Under reviewEffort not specifiedIndependent result31.71% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
AA-Omniscience ↗AA Index 4.3.2 collectionNot reported16.38 ↗Effort not specifiedIndependent result46.42 ↗Effort: max · Max, Default FallbackIndependent result
AA-LCR ↗1.1Not reported88.33% ↗Effort not specifiedIndependent result84.67% ↗Effort: max · Max, Default FallbackIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported62.01% ↗Effort: max · single run · equal mean of 7 suitesIndependent result86.53% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported76.9% ↗Effort: max · single runIndependent result86.9% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported72.8% ↗Effort: max · single runIndependent result85% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported24% ↗Effort: max · single runIndependent result80% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported85.6% ↗Effort: max · single runIndependent result96.3% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported27.5% ↗Effort: max · single runIndependent result85% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported63.5% ↗Effort: max · single runIndependent result80.3% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reported83.8% ↗Effort: max · single runIndependent result92.2% ↗Effort: max · single runIndependent result
Context window204.8K1M1M
Max output131.1K64K128K
Parameters———
Tool callingSupportedSupportedSupported
Structured outputSupportedSupportedSupported
Image inputNot reportedSupportedSupported
Video inputNot reportedSupportedNot reported
ReasoningSupportedSupportedSupported
Prompt cachingSupportedSupportedSupported
Open weightsSupportedSupportedNot reported

Add another model

Search all models →