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Put models side by side on price, context, capabilities, and benchmarks.
GLM-5.2 is Z.ai's flagship open-source model, shipping with a 1M-token context window, two selectable reasoning effort levels, and an unrestricted MIT license. It is competitive with top closed models on demanding software-engineering benchmarks, trailing Claude Opus-class models only narrowly while outperforming several rivals on coding tasks.
Claude Haiku 4.5 is Anthropic's fast, affordable small model in the Claude 4 generation, balancing strong instruction-following and coding ability with low latency. It is designed for high-throughput agentic and chat applications where speed and cost efficiency are priorities.
Benchmarks
Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.
Intelligence
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)
