GPT-5.4 Image 2 vs Kimi K2 0905
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for GPT-5.4 Image 2 and Kimi K2 0905.
GPT-5.4 Image 2
[GPT-5.4](https://openrouter.ai/openai/gpt-5.4) Image 2 combines OpenAI's GPT-5.4 model with state-of-the-art image generation capabilities from GPT Image 2. It enables rich multimodal workflows, allowing users to seamlessly move between reasoning, coding, and...
Kimi K2 0905
Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2). It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32...
Technical Specifications
| Specification | GPT-5.4 Image 2 | Kimi K2 0905 |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Context Window | 272,000 tokens | 262,144 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2026-04-21 | 2025-09-04 |
API Pricing Comparison
Input Price per Million Tokens
GPT-5.4 Image 2
$8.00
Kimi K2 0905
$0.60
Output Price per Million Tokens
GPT-5.4 Image 2
$15.00
Kimi K2 0905
$2.50
Want to test both models live?
Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
GPT-5.4 Image 2 Quirks & Gotchas
No developer gotchas reported.
Kimi K2 0905 Quirks & Gotchas
No developer gotchas reported.