Model comparison

GLM 4.5 Air vs Claude Opus Latest

Compare Z.ai: GLM 4.5 Air (OpenRouter) and Anthropic: Claude Opus Latest (OpenRouter) by price, context, capabilities, and latency.

Which should you pick?

  • Price: Z.ai: GLM 4.5 Air is cheaper ($0.025 / 1M tokens input / $0.161 / 1M tokens output) vs Anthropic: Claude Opus Latest ($0.94 / 1M tokens input / $4.70 / 1M tokens output).
  • Context: Anthropic: Claude Opus Latest has the larger context window (1M tokens).
  • Anthropic: Claude Opus Latest adds: JSON mode, Vision.

Side by side

Z.ai: GLM 4.5 Air vs Anthropic: Claude Opus Latest — full comparison

Compare price, provider, context, capabilities, latency, and source basis.

ModelProviderInputOutputContextCapabilitiesBest forLatencyStatusSource
Z.ai: GLM 4.5 Airz-ai/glm-4.5-airOpenRouter$0.025 / 1M tokens$0.161 / 1M tokens131.1k
StreamingTool callingLong context
General chat via OpenRouter, API workloads1000-3000msCatalogPlatform curated
Anthropic: Claude Opus Latest~anthropic/claude-opus-latestOpenRouter$0.94 / 1M tokens$4.70 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1000-3000msCatalogPlatform curated

FAQ

Z.ai: GLM 4.5 Air vs Anthropic: Claude Opus Latest FAQ

Is Z.ai: GLM 4.5 Air or Anthropic: Claude Opus Latest cheaper?

Z.ai: GLM 4.5 Air is cheaper ($0.025 / 1M tokens input / $0.161 / 1M tokens output) vs Anthropic: Claude Opus Latest ($0.94 / 1M tokens input / $4.70 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.

Which has a larger context window, Z.ai: GLM 4.5 Air or Anthropic: Claude Opus Latest?

Anthropic: Claude Opus Latest is larger (1M tokens) vs 131.1k tokens.

Z.ai: GLM 4.5 Air vs Anthropic: Claude Opus Latest for Long context: which should I pick?

Both target Long context. Pick Z.ai: GLM 4.5 Air to optimize cost, or Anthropic: Claude Opus Latest for the longer context window. Test both on real prompts before committing production traffic.