Kimi K3 vs Grok 4.7
Kimi K3 and Grok 4.7 are within three points on the Models at Work leaderboard, which we treat as a tie (60 vs 58). Kimi K3 is about 1.6× cheaper per blended million tokens ($2.31 vs $3.74, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Grok 4.7 leads 46 to 44.
| Kimi K3 · Moonshot | Grok 4.7 · xAI | |
|---|---|---|
| Leaderboard rank | #11 | #12 |
| Score (0–100) | 60 | 58 |
| Tier | Open weights | Workhorse |
| Price per 1M tokens | $2.31 blended (estimate) | $3.74 blended (estimate) |
| Context window | Not verified | 500K |
| Open weights | Yes | No |
| Artificial Analysis Intelligence Index | 44 | 46 |
| Arena text score | 1488 | — |
| Best for | Self-hosting, Open-licence requirements, Arena-style chat quality | X-integrated products |
Choose Kimi K3 if…
- you need self-hosting
- you need open-licence requirements
- you need arena-style chat quality
The highest-placed open-licence model on Arena, and the one most teams have not tried yet.
Caveats: Price is Artificial Analysis' blended figure, not a vendor list price; context not verified from a primary source.
Choose Grok 4.7 if…
- you need x-integrated products
Mid-table on the index at a frontier price, with a smaller context window than everyone above it.
Caveats: 500K context is the smallest in the table. Listed by Artificial Analysis under the creator's current corporate name.
Questions people ask
Which is better, Kimi K3 or Grok 4.7?
Kimi K3 and Grok 4.7 are within three points on the Models at Work leaderboard, which we treat as a tie (60 vs 58). Kimi K3 is about 1.6× cheaper per blended million tokens ($2.31 vs $3.74, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Grok 4.7 leads 46 to 44.
When should I choose Kimi K3 over Grok 4.7?
Choose Kimi K3 for self-hosting, open-licence requirements, arena-style chat quality. The highest-placed open-licence model on Arena, and the one most teams have not tried yet.
When should I choose Grok 4.7 over Kimi K3?
Choose Grok 4.7 for x-integrated products. Mid-table on the index at a frontier price, with a smaller context window than everyone above it.
Which is cheaper, Kimi K3 or Grok 4.7?
Moonshot does not publish a simple list price for Kimi K3; Artificial Analysis estimates a blended $2.31 per million tokens (three input to one output). xAI does not publish a simple list price for Grok 4.7; Artificial Analysis estimates a blended $3.74 per million tokens (three input to one output).
Scores come from the Models at Work leaderboard: Score is 0 to 100: 50% independent evals normalised within this table, 20% price-performance, 15% practitioner sentiment from Signals and community threads, 15% operational fit (context, speed, availability, open weights). Models within three points are a tie in practice. Vendor-published figures are labelled as such and never counted as independent. Prices are vendor list prices where published; blended figures assume three input tokens per output token.