LLM Comparison
Kimi K2.5 vs GPT-5.4
Side-by-side specs, pricing & capabilities · Updated April 2026
Price vs Intelligence
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2/6 modelsSame tier:
K Kimi K2.5 |  GPT-5.4 | |
|---|---|---|
| Organization | Moonshot AI |  OpenAI |
| OpenTools Score | 76 72.7 | 82 9.4 |
| Family | Kimi | GPT |
| Status | Current | Current |
| Release Date | Jan 2026 | Mar 2026 |
| Context Window | 262K tokens | 1.1M tokens |
| Input Price | $0.38/M tokens | $2.50/M tokens |
| Output Price | $1.72/M tokens | $15.00/M tokens |
| Pricing Notes | Cache read: $0.1913/M tokens | Cache read: $0.2500/M tokens |
| Capabilities | textvisioncode | textvisioncode |
| Max Output | 66K tokens | 128K tokens |
| API Identifier | moonshotai/kimi-k2.5 | openai/gpt-5.4 |
| Benchmarks | ||
| GPQA Diamond | — | 93openai |
| SWE-bench Pro | — | 57.7openai |
| OSWorld-Verified | — | 75openai |
| Terminal-Bench 2.0 | — | 75.1openai |
| ARC-AGI-2 | — | 73.3openai |
| BrowseComp | — | 82.7openai |
| MMMU-Pro | — | 81.2openai |
| MATH-500 | — | 94.6openai |
| View Kimi K2.5 | View GPT-5.4 | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Kimi K2.5Cheapest | $0.38 | $0.86 | $1.24 | — |
| GPT-5.4 | $2.50 | $7.50 | $10.00 | +705% |
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.
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.
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