Kimi K2 vs GPT-5.4
| Kimi K2 | GPT-5.4 | |
|---|---|---|
| Provider | Moonshot | OpenAI |
| Context Window | 131,072 | 400,000 |
| Release Date | 2025-07-10 | — |
| Input Price | $0.60/ 1M tokens | $2.50/ 1M tokens |
| Output Price | $2.50/ 1M tokens | $15.00/ 1M tokens |
| Best for | coding · reasoning · tool use · agentic workflows | coding · agents · analysis · chatbot |
Capabilities
| Kimi K2 | GPT-5.4 | |
|---|---|---|
| Vision | ✗ | ✓ |
| Reasoning | ✓ | ✓ |
| Coding | ✓ | ✓ |
| Audio | ✗ | ✗ |
| Tools | ✓ | ✓ |
| Long Context | ✓ | ✓ |
Ranking Comparison
| Kimi K2 | GPT-5.4 | |
|---|---|---|
| Overall | 38 | 47.1 |
| Benchmark | 0 | 0 |
| Capability | 57.1 | 85.7 |
| Price Efficiency | 100 | 100 |
| Context | 65.5 | 100 |
Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.
Benchmark Comparison
| Kimi K2 | GPT-5.4 | |
|---|---|---|
| Coding | — | — |
| Reasoning | — | — |
| Math | — | — |
| Vision | — | — |
Price History
Kimi K2
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $0.60 | $2.50 |
/ 1M tokens
GPT-5.4
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $2.50 | $15.00 |
/ 1M tokens
Kimi K2
Moonshot AI's open-weight reasoning model built for agentic coding and tool use.
GPT-5.4
OpenAI's affordable flagship for coding and professional workloads.
Frequently Asked Questions
Which model is better: Kimi K2 or GPT-5.4?
Based on overall scores, GPT-5.4 ranks higher (47.1 vs 38). See the comparison table for a full breakdown.
Which model is cheaper: Kimi K2 or GPT-5.4?
Kimi K2 is cheaper: $0.6 vs $2.5 per 1M input tokens.
What are the capability differences between Kimi K2 and GPT-5.4?
GPT-5.4: Vision