LLM Comparison
Grok 4.7 vs Kimi K3
Side-by-side specs, pricing & capabilities
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2/6 models| Organization | ||
| OpenTools Score | 81 9.0 | |
| Family | Grok | Kimi |
| Status | Current | Current |
| Release Date | Sep 2026 | — |
| Context Window | 500K tokens | 1.0M tokens |
| Input Price | $2.00/M tokens | $3.00/M tokens |
| Output Price | $6.00/M tokens | $15.00/M tokens |
| Pricing Notes | SpaceXAI xAI API global standard tier, USD per million tokens. Below 200,000 prompt tokens: $2 input, $0.50 cached input, $6 output. Above 200,000 prompt tokens: $4 input, $1 cached input, $12 output. Fast serving and regional endpoints have separate conditions. The provider explicitly states there is no text output limit; no numeric maxOutputTokens is asserted. | Official Kimi pricing lists kimi-k3 at $3.00 per 1M cache-miss input tokens, $0.30 per 1M cache-hit input tokens, and $15.00 per 1M output tokens. Official troubleshooting docs say max_completion_tokens defaults to 131,072 and maximum output length is 1024*1024 minus prompt tokens. |
| Capabilities | codingreasoningvisiontool-usestructured-outputlong-contextcontext-caching | textvisionreasoningcodingtool-usestructured-outputjson-modelong-contextagentic |
| Max Output | — | 131K tokens |
| API Identifier | grok-4.7 | kimi-k3 |
| Benchmarks | ||
| Artificial Analysis Intelligence Index v4.3.2 | 42.2 indexartificial-analysis | — |
| Artificial Analysis Intelligence Index v4.3 | — | 43.8 indexartificial-analysis |
| Artificial Analysis Intelligence Index v4.3 | — | 44 indexhttps://artificialanalysis.ai/models/kimi-k3 |
| GPQA Diamond | — | 93.5%artificial-analysis |
| SciCode | — | 59.5%artificial-analysis |
| Terminal-Bench 2.1 | — | 85%artificial-analysis |
| View Grok 4.7 | View Kimi K3 | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Grok 4.7Cheapest | $2.00 | $3.00 | $5.00 | — |
| Kimi K3 | $3.00 | $7.50 | $10.50 | +110% |
xAI
Grok 4.7
Grok 4.7 is SpaceXAI's proprietary coding and knowledge-work model, available as grok-4.7 on the xAI API. It accepts text and images, returns text, and offers a 500,000-token context window. SpaceXAI's release notes specify no text output limit. Standard global API pricing starts at $2 input and $6 output per million tokens, with separate cached-input and long-context rates.
Moonshot AI
Kimi K3
Kimi K3 is Moonshot AI open-weight 2.8T-parameter flagship model for long-horizon coding, end-to-end knowledge work, reasoning, and native multimodal understanding. Official Kimi documentation lists the API model ID kimi-k3, a 1M-token context window, automatic context caching, tool calls, JSON mode, structured outputs, and always-on reasoning effort controls.
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