Moonshot AI
Kimi K3
Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...
Cost / 1M tokens
High usage$0.192
input
$0.182
cached input
$16.00
output
Context Window
1M
Up to 944K max output
Architecture
1T MoE · 1M context
text + image + video → text
Quickstart & API
moonshotai/kimi-k3Best for & Strengths
Key Strengths
Recommended Workloads in ChatOSS
- Large repositories
- Long-context coding
- Coding agents
Verified Evaluations
Benchmarks & Frontier Comparison
How Kimi K3 compares against leading open-weight and proprietary frontier models across independent agentic coding and reasoning suites.
| Benchmark (Metric) | Kimi K3 | DeepSeek V4.1 Flash | GLM 5.3 | Kimi K3.1 Pro | Claude Opus 5.5 |
|---|---|---|---|---|---|
| Agentic & Software Engineering | |||||
| ChatOSS Agentic Coding Index (%) | 45.5% | 63.2% | 58.3% | 65% | 74.1% |
| SWE-Bench Verified (%) | 93.4% | 91.5% | 95.4% | 94.8% | 97% |
| DeepSWE v1.1 (Pass@1 %) | 68.5% | 77% | 69% | 73.5% | 74.2% |
| Vibe Code Bench v1.1 (%) | 84.96% | 87.7% | 78.1% | 88.4% | 90.3% |
| Terminal-Bench 4.0 (%) | 12.63% | 42.3% | 42% | 46.2% | 65.2% |
| Code Migration (%) | 16.1% | 45.6% | 44.2% | 52% | 66.7% |
| Intelligence & Token Economics | |||||
| Artificial Analysis Intelligence Index (0–100) | 17.4 | 39.5 | 44.8 | 55.1 | 57.6 |
| Input Price (/ 1M tokens) | $0.192 | $0.15 | $1.40 | $2.00 | $4.00 |
| Output Price (/ 1M tokens) | $16.00 | $0.60 | $4.40 | $10.00 | $20.00 |
ChatOSS Agentic Coding Index
ChatOSS Benchmark Audit · 4-benchmark composite mean
SWE-Bench Verified
Vals AI · Terminus 2
DeepSWE v1.1
DeepSWE / Official Audit · Mini-SWE-Agent
Vibe Code Bench v1.1
Vals.ai · OpenHands
Terminal-Bench 4.0
Vals.ai / Artificial Analysis · Terminus 2
Terminal-Bench 2.1
Vals.ai · Terminus 2
Code Migration
Vals.ai · Vals evaluation harness
Artificial Analysis Intelligence Index
Artificial Analysis
Design Arena: AGENTICGAMEDEV
Design Arena · Rank #4 (54% win)
Design Arena: ANDROIDNATIVE
Design Arena · Rank #7 (57.4% win)
Design Arena: BLENDER3D
Design Arena · Rank #8 (40.2% win)
Design Arena: CODETOVIDEO
Design Arena · Rank #3 (63.8% win)
Active Provider Endpoints (27)
Upstream inference providers serving Kimi K3, with per-provider pricing, context limits, quantization, and 24-hour uptime.
| Provider | Input / 1M | Output / 1M | Cache Read / 1M | Context | Max Output | Quantization | Uptime (24h) |
|---|---|---|---|---|---|---|---|
Wafercache wafer/fast | $0.153 | $16.00 | $0.152 | 1M | 944K | mxfp4 | 100.0% |
Relacecache relace/fp4 | $0.182 | $11.01 | $0.18 | 1M | 944K | fp4 | 100.0% |
Wafercache wafer | $0.192 | $16.00 | $0.182 | 1M | 944K | mxfp4 | 100.0% |
InferenceNetcache inference-net/us | $0.234 | $15.00 | $0.195 | 1M | 944K | fp4 | 100.0% |
InferenceNetcache inference-net/fp4 | $0.234 | $15.00 | $0.195 | 1M | 944K | fp4 | 100.0% |
Wafercache wafer/us | $0.276 | $9.60 | $0.13 | 1M | 944K | mxfp4 | 100.0% |
Sail Researchcache sail-research/fp4/us | $0.345 | $16.58 | $0.172 | 1M | 944K | fp4 | 99.9% |
Sail Researchcache sail-research/fp4 | $0.345 | $16.58 | $0.172 | 1M | 944K | fp4 | 100.0% |
InferenceNetcache inference-net/us/fast | $0.45 | $18.00 | $0.315 | 1M | 944K | fp4 | 100.0% |
InferenceNetcache inference-net/fast | $0.45 | $18.00 | $0.315 | 1M | 944K | fp4 | 99.9% |
Makoracache makora/fp4 | $1.20 | $17.00 | $0.60 | 1M | 944K | fp4 | 100.0% |
Chutescache chutes/mxfp4 | $1.85 | $9.50 | $0.185 | 1M | 66K | mxfp4 | 100.0% |
Io Netcache io-net/fp4 | $2.30 | $14.00 | $0.23 | 1M | 131K | fp4 | 99.9% |
DigitalOceancache digitalocean | $2.55 | $12.95 | $0.255 | 1M | 944K | — | 99.6% |
DeepInfracache deepinfra/mxfp4 | $2.85 | $14.25 | $0.285 | 1M | 944K | mxfp4 | 100.0% |
KTcache kt | $3.00 | $15.00 | $0.30 | 1M | 944K | — | 99.9% |
Amazon Bedrock amazon-bedrock/us-east-2 | $3.00 | $15.00 | $0.30 | 1M | 128K | — | 100.0% |
Parasailcache parasail/fp4 | $3.00 | $15.00 | $0.30 | 1M | 944K | fp4 | 100.0% |
Modalcache modal/mxfp4 | $3.00 | $15.00 | $0.30 | 1M | 944K | mxfp4 | 100.0% |
Togethercache together | $3.00 | $15.00 | $0.30 | 1M | 944K | — | 100.0% |
Fireworkscache fireworks | $3.00 | $15.00 | $0.30 | 1M | 944K | — | 99.1% |
BaseTencache baseten/fp8 | $3.00 | $15.00 | $0.30 | 1M | 262K | fp8 | 95.0% |
Moonshot AIcache moonshotai | $3.00 | $15.00 | $0.30 | 1M | 944K | — | 100.0% |
Alibabacache alibaba | $3.45 | $17.25 | $0.345 | 1M | 131K | — | 99.6% |
Parasailcache parasail/fast | $4.50 | $22.50 | $0.45 | 1M | 900K | fp4 | 100.0% |
Fireworkscache fireworks/us | $4.50 | $22.50 | $0.45 | 1M | 944K | — | 100.0% |
Fireworkscache fireworks/fast | $4.50 | $22.50 | $0.45 | 1M | 944K | — | 67.0% |
Supported API Parameters
Parameters accepted by this model when called through ChatOSS or OpenRouter.
Deep-Dive Benchmarks & Teardowns
Independent benchmark analysis and real-world agent billing teardowns featuring Kimi K3.
2026-07-20 · 4 min read
Is Kimi K3 down?
Moonshot AI's breakout open model isn't offline — but a record-breaking launch has pushed its compute to the limit, and new subscriptions are paused. Here's what's actually happening.
2026-11-10 · 12 min read
Kimi K3.1 Pro wins the terminal, not the codebase
Moonshot's open-weight flagship tops Terminal-Bench 4.0 at 67.2% in Artificial Analysis's independent run — then scores 25.5% on FrontierCode 2.0 against Claude Opus 5.5's 46.4%. The best open model is now a specialist, and the cache math still favors Sonnet.
2026-07-20 · 6 min read
Ollama Cloud shut down new Max plans — and Kimi K3 is melting the servers
Ollama paused new $100/mo Max subscriptions because cloud token volume is doubling every month. Kimi K3 just landed on the platform, GLM-5.2 forced a GPU doubling, and even Max users hit an “extra usage only” wall. Here's what's happening.
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