MoonshotAI: Kimi K3.1 Pro (batch)
moonshotai/kimi-k3.1-pro:batch
Model weightsKimi 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 creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.
Providers
Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick: Balanced (price + speed), Nitro (fastest), or Floor (cheapest).
| $0.70 | $6.00 | $0.10 | -- | -- |
- Input $0.70 / Output $6.00-- tok/s-- uptime
Pricing
The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.
Weighted average
Kimi K3.1 Pro (batch) — Price history
| $0.00 | $0.00 | 70.0% | 100.0% |
- Effective in $0.00 / Effective out $0.00Token share100.0%
Performance
Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).
Uptime
Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.
Not enough uptime data to display yet.
When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.
Benchmarks
Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.
| Source | Benchmark | Score |
|---|---|---|
| Artificial Analysis | Kimi K3.1 Pro Intelligence Index | 46.5 |
| Artificial Analysis | Kimi K3.1 Pro HLE | 52.5% |
| Artificial Analysis | Kimi K3.1 Pro AA-LCR | 86.3% |
| Artificial Analysis | Kimi K3.1 Pro GDPval-AA | 68.0% |
| Artificial Analysis | Kimi K3.1 Pro CritPt | 24.6% |
| Artificial Analysis | Kimi K3.1 Pro SciCode | 60.8% |
| Artificial Analysis | Kimi K3.1 Pro Terminal-Bench 4.0 | 67.2% |
| Artificial Analysis | Kimi K3.1 Pro AA-Omniscience Accuracy | 48.9% |
| Artificial Analysis | Kimi K3.1 Pro AA-Omniscience Non-Hallucination Rate | 62.7% |
| Design Arena | Kimi K3.1 Pro Agents Arena Androidnative Elo | 1147 |
| Design Arena | Kimi K3.1 Pro Agents Arena Codetovideo Elo | 1234 |
| Design Arena | Kimi K3.1 Pro Agents Arena Full Stack Elo | 1319 |
| Design Arena | Kimi K3.1 Pro Agents Arena Mobile Apps Elo | 1268 |
| Design Arena | Kimi K3.1 Pro Agents Arena Pdf Elo | 1224 |
| Design Arena | Kimi K3.1 Pro Agents Arena Python-Pptxslides Elo | 1278 |
| Design Arena | Kimi K3.1 Pro Agents Arena Spreadsheet Elo | 1326 |
| Design Arena | Kimi K3.1 Pro Agents Arena Webapps Elo | 1313 |
| Design Arena | Kimi K3.1 Pro Models Arena 3D Elo | 1441 |
| Design Arena | Kimi K3.1 Pro Models Arena Asciiart Elo | 1301 |
| Design Arena | Kimi K3.1 Pro Models Arena Code Categories Elo | 1350 |
| Design Arena | Kimi K3.1 Pro Models Arena Data Visualization Elo | 1300 |
| Design Arena | Kimi K3.1 Pro Models Arena Game Development Elo | 1403 |
| Design Arena | Kimi K3.1 Pro Models Arena SVG Elo | 1328 |
| Design Arena | Kimi K3.1 Pro Models Arena UI Component Elo | 1389 |
| Design Arena | Kimi K3.1 Pro Models Arena Website Elo | 1321 |
| Vals AI | Kimi K3.1 Pro Access to Justice Benchmark | 69.5% |
| Vals AI | Kimi K3.1 Pro BioMysteryBench | 75.6% |
| Vals AI | Kimi K3.1 Pro CyberOffense | 53.8% |
| Vals AI | Kimi K3.1 Pro EMB v1.1 | 70.0% |
| Vals AI | Kimi K3.1 Pro Finance Agent v2.1 | 61.5% |
| Vals AI | Kimi K3.1 Pro Vals Finance Index | 56.0% |
| Vals AI | Kimi K3.1 Pro HLAB-Vals-1.1 | 11.7% |
| Vals AI | Kimi K3.1 Pro IOI | 81.9% |
| Vals AI | Kimi K3.1 Pro Vals Legal Index | 67.0% |
| Vals AI | Kimi K3.1 Pro Legal Research Bench | 37.5% |
| Vals AI | Kimi K3.1 Pro MysteryMechanism | 26.1% |
| Vals AI | Kimi K3.1 Pro ProofBench v1.1 | 91.0% |
| Vals AI | Kimi K3.1 Pro Vals Science Index | 44.4% |
| Vals AI | Kimi K3.1 Pro SRE Bench | 27.1% |
| Vals AI | Kimi K3.1 Pro Tax Agent Bench | 24.9% |
| Vals AI | Kimi K3.1 Pro Terminal-Bench 4.0 | 63.6% |
| Vals AI | Kimi K3.1 Pro Terminal-Bench-Science | 31.4% |
| Vals AI | Kimi K3.1 Pro Vals Index | 62.5% |
| Vals AI | Kimi K3.1 Pro Vibe Code Bench v1.1 | 84.9% |
Apps
Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.
Not enough data for apps using this model yet.
Activity
Token volume and request traffic to this model over time.
API
Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.
Not currently available through EU in-region routing. In-region routing docs
Frequently asked questions
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 creation, financial research, and end-to-end agentic knowledge work, with native image and video understanding.
Kimi K3.1 Pro (batch) costs $0.70/M input tokens and $6.00/M output tokens, with separate rates for Cache Read at $0.10/M tokens.
Kimi K3.1 Pro (batch) has a 1,048,576 token context window. It supports up to 1,048,576 completion tokens.
No. Kimi K3.1 Pro (batch) does not accept tools, so function calling is unavailable. It does not support response_format, so JSON output is not enforced.
Kimi K3.1 Pro (batch) accepts text, images, and video as input and returns text.
Kimi K3.1 Pro (batch) is served by 1 provider on OpenRouter: Sail Research.
Kimi K3, Kimi K2.7 Code, Kimi K2.6 and 4 more are other text models from MoonshotAI.
Kimi K3.1 Pro (batch) was released on October 23, 2026.