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Comparison of Z.ai: GLM 4.5, GLM-5.2-FP8, Anthropic: Claude Sonnet 5.5
3 modelsz-aiZ.ai: GLM 4.5Remove ×zai-orgGLM-5.2-FP8Remove ×anthropicAnthropic: Claude Sonnet 5.5Remove ×
What’s differentGLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5…Open weights · Tool callingTuned for quick iteration on scoped fixes and documents; Anthropic favors Opus 5.5 for open-ended work needing sustained judgment.
DateJul 20, 2025ListedJun 16, 2026ListedSep 28, 2026Released
Listed rate$0.60 in / $2.20 out/ 1M tokensZ.AI · via OpenRouter · all routes ↗z-ai/fp8 · quantization=fp8See provider quotes$2.00 in / $10.00 out/ 1M tokensAmazon Bedrock · via OpenRouter · all routes ↗amazon-bedrock
Provider endpoints3 endpoints →1 endpoint →11 endpoints →
AA Intelligence ↗4.3.2Not reportedNot reported56 ↗Effort: max · Max, Default FallbackIndependent result
AA-Briefcase ↗1.1Not reportedNot reported1,817.26 ↗Effort: max · Max, Default FallbackIndependent result
GDPval-AA ↗2.1Not reportedNot reported1,837.82 ↗Effort: max · Max, Default FallbackIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collectionNot reportedNot reported71.77% ↗Effort: max · Max, Default FallbackIndependent result
Terminal-Bench 4.0 · AA ↗Not reportedNot reported63.64% ↗Effort: max · Max, Default FallbackHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collectionNot reportedNot reported61% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collectionNot reportedNot reported54.96% ↗Effort: max · Max, Default FallbackIndependent result
GDP.pdf ↗AA Index 4.3.2 collectionNot reportedNot reported25.8% ↗Effort: max · Max, Default FallbackIndependent result
CritPt ↗AA Index 4.3.2 collectionNot reportedNot reported31.43% ↗AA · Under reviewEffort: max · Max, Default FallbackIndependent result
AA-Omniscience ↗AA Index 4.3.2 collectionNot reportedNot reported32.3 ↗Effort: max · Max, Default FallbackIndependent result
AA-LCR ↗1.1Not reportedNot reported82.67% ↗Effort: max · Max, Default FallbackIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported82.46% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported85% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported83.6% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported84% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported94.7% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported78.8% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported59.5% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported91.6% ↗Effort: max · single runIndependent result
Context window131.1K—1M
Max output98.3K—128K
Parameters———
Tool callingSupportedSupportedSupported
Structured outputSupportedNot reportedSupported
Image inputNot reportedNot reportedSupported
ReasoningSupportedNot reportedSupported
Prompt cachingSupportedNot reportedSupported
Open weightsSupportedSupportedNot reported

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