Comparing 4

GPT-6 LunavsClaude Haiku 5.5vsGLM 5.3 FlashvsGemini 3.8 Flash

Send one prompt to every model and read the answers side by side, with speed and cost for each.

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Highlighted values are the best among your picks.

GPT-6 LunaOpen AINEW

OpenAI's most efficient model for focused, high-volume tasks

Claude Haiku 5.5AnthropicNEW

Fast Claude model for responsive assistance, classification, and lightweight agents

GLM 5.3 FlashZ.ai· open weights

Native multimodal GLM model for efficient coding and long-horizon agent tasks

Gemini 3.8 FlashGoogle

Google's most intelligent Flash model, engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows

Intelligence
Intelligence index38.143.441.840.9
Price
Input, $ per 1M$0.10$0.10$0.15$0.75
Output, $ per 1M$0.50$0.50$0.50$3.75
Typical message (500 in / 250 out)$0.00017$0.00017$0.00020$0.0013
Repeated input, cached$0.01 · 10× cheaper$0.01 · 10× cheaper$0.03 · 5× cheaper$0.07 · 10× cheaper
Prompts over 200K tokens$0.20 / $0.75Same priceSame priceSame price
Limits
Context window1.05M1M1M1.05M
Longest answer128K tokens128K tokens131K tokens66K tokens
Knowledge cutoffMay 2026Jun 2026Not publishedNot published
What it can take and do
AcceptsTextImagePDFTextImagePDFTextImageTextImagePDFAudioVideo
Reasoning effortOff · Low · Med · High · X-high · MaxLow · Med · High · X-high · MaxLow · High · MaxLow · Med · High
Tool useYesYesYesYes
Guaranteed JSON outputYesYesYesYes
Availability
Released22 Sept 20267 Oct 202626 Aug 20262 Sept 2026
Open weightsNoNoYes, can self-hostNo
API providers offering it36337629