LLM Comparison

GPT-5.4 vs Kimi K2.5

Side-by-side specs, pricing & capabilities · Updated April 2026

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2/6 models
Same tier:
 OpenAIGPT-5.4
K
Kimi K2.5
OrganizationOpenAIOpenAIMoonshot AI
OpenTools Score
FamilyGPTKimi
StatusCurrentCurrent
Release DateMar 2026Jan 2026
Context Window1.1M tokens262K tokens
Input Price$2.50/M tokens$0.38/M tokens
Output Price$15.00/M tokens$1.72/M tokens
Pricing NotesCache read: $0.2500/M tokensCache read: $0.1913/M tokens
Capabilities
textvisioncode
textvisioncode
Max Output128K tokens66K tokens
API Identifieropenai/gpt-5.4moonshotai/kimi-k2.5
 View GPT-5.4View Kimi K2.5

Cost Calculator

Enter your expected monthly token usage to compare costs.

ModelInputOutputTotal / movs Best
Kimi K2.5Cheapest$0.38$0.86$1.24—
GPT-5.4$2.50$7.50$10.00+705%

OpenAI

GPT-5.4

GPT-5.4 is a multimodal llm from OpenAI. Supports up to 1,050,000 token context window. Available from $2.50/M input tokens.

Moonshot AI

Kimi K2.5

Kimi K2.5 is a multimodal llm from Moonshot AI. Supports up to 262,144 token context window. Available from $0.38/M input tokens.

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