Key Takeaways
Kimi K2 Thinking wins:
- Cheaper input tokens
- Larger context window
GPT-3.5 Turbo wins:
- Cheaper output tokens
- Faster response time
- Higher intelligence benchmark
- Better at coding
Price Advantage
Kimi K2 Thinking
Benchmark Advantage
GPT-3.5 Turbo
Context Window
Kimi K2 Thinking
Speed
GPT-3.5 Turbo
Pricing Comparison
Price Comparison
| Metric | Kimi K2 Thinking | GPT-3.5 Turbo | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.47 | $0.50 | Kimi K2 Thinking |
| Output (per 1M tokens) | $2.00 | $1.50 | GPT-3.5 Turbo |
| Cache Read (per 1M) | $0.14 | N/A | Kimi K2 Thinking |
Using a 3:1 input/output ratio, GPT-3.5 Turbo is 12% cheaper overall.
Kimi K2 Thinking Providers
DeepInfra $0.47 (Cheapest)
Parasail $0.50
SiliconFlow $0.55
AtlasCloud $0.60
Nebius $0.60
GPT-3.5 Turbo Providers
OpenAI $0.50 (Cheapest)
Vercel $0.50 (Cheapest)
Azure $1.50
Benchmark Comparison
5
Benchmarks Compared
0
Kimi K2 Thinking Wins
0
GPT-3.5 Turbo Wins
Benchmark Scores
| Benchmark | Kimi K2 Thinking | GPT-3.5 Turbo | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 9.0 | - |
Coding Index Code generation & understanding | - | 10.7 | - |
MMLU Pro Academic knowledge | - | 46.2 | - |
GPQA Graduate-level science | - | 29.7 | - |
Aider Real-world code editing | - | 57.9 | - |
GPT-3.5 Turbo significantly outperforms in coding benchmarks.
Cost vs Quality
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Kimi K2 Thinking
Other models
Context & Performance
Context Window
Kimi K2 Thinking
131,072
tokens
GPT-3.5 Turbo
16,385
tokens
Max output: 4,096 tokens
Kimi K2 Thinking has a 87% larger context window.
Speed Performance
| Metric | Kimi K2 Thinking | GPT-3.5 Turbo | Winner |
|---|---|---|---|
| Tokens/second | N/A | 102.2 tok/s | |
| Time to First Token | N/A | 0.44s |
Capabilities
Feature Comparison
| Feature | Kimi K2 Thinking | GPT-3.5 Turbo |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Kimi K2 Thinking | GPT-3.5 Turbo |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Moonshotai | OpenAI |
| Released | Nov 2025 | May 2023 |
Kimi K2 Thinking Modalities
Input
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Output
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GPT-3.5 Turbo Modalities
Input
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Output
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