GLM 5.3 FlashX Legal vs Kimi K3.1 Pro
Detailed technical comparison between GLM 5.3 FlashX Legal (Zhipu AI) and Kimi K3.1 Pro (Moonshot AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Tie
Equal CapacityTie
Equal CapabilityTie
Equal SpeedGLM 5.3 FlashX Legal
$0.37 / MTokGLM 5.3 FlashX Legal
GLM-5.3-FlashX-Legal (GLM-Legal) is Z.ai's legal-domain variant of GLM-5.3-FlashX, a native multimodal model that accepts text, image, and video input and produces text. It adds legal-domain mid-training and post-training with reinforcement...
Kimi K3.1 Pro
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
Technical Specifications
🏆 = Superior Spec| Specification | GLM 5.3 FlashX Legal | Kimi K3.1 Pro |
|---|---|---|
| Provider | Zhipu AI | Moonshot AI |
| Context Window | 1,048,576 tokens | 1,048,576 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | managed api |
| Production Stability | Not verified | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-11-02 | 2026-10-23 |
API Pricing Comparison
Input Price per Million Tokens
GLM 5.3 FlashX Legal
$0.37
Kimi K3.1 Pro
$2.00
Output Price per Million Tokens
GLM 5.3 FlashX Legal
$1.25
Kimi K3.1 Pro
$10.00
💡 Cost Ratio: GLM 5.3 FlashX Legal is 5.4x cheaper per input token than Kimi K3.1 Pro.
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
GLM 5.3 FlashX Legal Quirks & Gotchas
No developer gotchas reported.
Kimi K3.1 Pro Quirks & Gotchas
No developer gotchas reported.
Explore Other Popular Comparisons
GLM 5.3 FlashX Legal vs Auto Code
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGLM 5.3 FlashX Legal vs Gemini Omni 1.2 Flash
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGLM 5.3 FlashX Legal vs Hy4
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGLM 5.3 FlashX Legal vs GPT-6.1 Terra
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGLM 5.3 FlashX Legal vs MiniMax M3.1 Flash
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGLM 5.3 FlashX Legal vs DeepSeek V4.1 Flash 1017
Compare context windows, live API token prices, and benchmark scores.