Model comparison - Similar price, same tier
Grok 4.7 vs Kimi K3
Grok 4.7 is from xAI and Kimi K3 is from Moonshot AI. On list price, Kimi K3 charges 1.5x Grok 4.7's input price ($3 vs $2 per 1M tokens), and Kimi K3 charges 2.5x Grok 4.7's output price ($15 vs $6 per 1M tokens). Grok 4.7 has a 500,000-token context window and Kimi K3 1,048,576 tokens; Kimi K3 returns up to 1,048,576 output tokens per response, and no primary source states a max output for Grok 4.7. Grok 4.7 was released on September 21, 2026; no primary source states a release date for Kimi K3. Kimi K3 publishes open weights (Kimi K3 License (Hugging Face license tag: other)); Grok 4.7 is closed-weights.
Last verified from each provider's pricing page. All sources
Side-by-side specs
| Spec | Grok 4.7 | Kimi K3 |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Input / 1M tokens | $2 | $3 |
| Output / 1M tokens | $6 | $15 |
| Cache read / 1M | $0.50 | $0.30 |
| Cache write / 1M | - | $3 |
| Long-context rates above | 200,000 tokens | - |
| Context window | 500,000 | 1,048,576 |
| Max output | - | 1,048,576 |
| Release date | - | |
| Weights | Closed | Open |
| License | - | Kimi K3 License (Hugging Face license tag: other) |
| API model id | grok-4.7 | kimi-k3 |
| AI Gateway id | spacexai/grok-4.7 | moonshotai/kimi-k3 |
| Last verified |
Prices in USD per 1M tokens at each provider's standard first-party rate. A dash means the provider does not bill that item separately or no primary page states it.
What each costs in practice
The same three workloads every model page uses, worked from each model's standard list rates. Swap in your own token counts with the math on each model's page.
| Workload | Grok 4.7 | Kimi K3 |
|---|---|---|
| One agent session1M input tokens and 100K output tokens, no caching. | $2.60 | $4.50 |
| A chat app10,000 requests a day at 2K input and 500 output tokens each. | $70.00$2,100.00 per 30-day month | $135.00$4,050.00 per 30-day month |
| The same session at a 90% cache hit90% of the input is read from the prompt cache. The one-time cache write premium is not included. | $1.25 | $2.07 |
Show the math
Grok 4.7
- One agent sessionInput: 1M x $2 = $2.00Output: 0.1M x $6 = $0.60
- A chat appInput: 20M x $2 = $40.00Output: 5M x $6 = $30.00
- The same session at a 90% cache hitCached input: 0.9M x $0.50 = $0.45Uncached input: 0.1M x $2 = $0.20Output: 0.1M x $6 = $0.60
Kimi K3
- One agent sessionInput: 1M x $3 = $3.00Output: 0.1M x $15 = $1.50
- A chat appInput: 20M x $3 = $60.00Output: 5M x $15 = $75.00
- The same session at a 90% cache hitCached input: 0.9M x $0.30 = $0.27Uncached input: 0.1M x $3 = $0.30Output: 0.1M x $15 = $1.50
Benchmarks under the same setting
Only boards that list both models under the same run setting appear here, one row per board and setting, with each score exactly as the board shows it. Scores on different boards use different scales and are never combined.
| Board and setting | Grok 4.7 | Kimi K3 |
|---|---|---|
| LMArena WebDev (Code Arena WebDev Overall)Code Arena WebDev Overall, default leaderboard view (891,922 votes, 145 models)Official leaderboard - arena.ai | 1639+10/-10 | 1655+6/-6 |
Set them up in your tools
Step-by-step guides whose official docs list Grok 4.7 or Kimi K3 by model id.
- Use Grok in ClineLists Grok 4.7
- Use Grok in Codex CLILists Grok 4.7
- Use Grok in ContinueLists Grok 4.7
- Use Grok in GitHub CopilotLists Grok 4.7
- Use Grok in GooseLists Grok 4.7
- Use Grok in Kilo CodeLists Grok 4.7
- Use Grok in OpenCodeLists Grok 4.7
- Use Grok in Roo CodeLists Grok 4.7
- Use Grok in ZedLists Grok 4.7
- Use Kimi in Claude CodeLists Kimi K3
- Use Kimi in ClineLists Kimi K3
- Use Kimi in Codex CLILists Kimi K3
- Use Kimi in ContinueLists Kimi K3
- Use Kimi in GooseLists Kimi K3
- Use Kimi in OpenCodeLists Kimi K3
- Use Kimi in ZedLists Kimi K3
Model pages
FAQ
How do Grok 4.7 and Kimi K3 compare on price?
On list price, Kimi K3 charges 1.5x Grok 4.7's input price ($3 vs $2 per 1M tokens), and Kimi K3 charges 2.5x Grok 4.7's output price ($15 vs $6 per 1M tokens). For one agent session of 1M input and 100K output tokens with no caching, that is $2.60 on Grok 4.7 and $4.50 on Kimi K3. Prices are each provider's first-party list rates, verified October 17, 2026 and October 17, 2026.
What are the context windows of Grok 4.7 and Kimi K3?
Grok 4.7 has a 500,000-token context window and Kimi K3 1,048,576 tokens; Kimi K3 returns up to 1,048,576 output tokens per response, and no primary source states a max output for Grok 4.7.
Are Grok 4.7 and Kimi K3 open weights?
Grok 4.7 is closed-weights and is called through xAI's API as grok-4.7. Kimi K3's weights are published at huggingface.co under the Kimi K3 License (Hugging Face license tag: other).
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- Claude Opus 5.5 vs Kimi K3Similar price, same tier
Sources
Grok 4.7 verified from docs.x.ai; Kimi K3 verified from platform.kimi.ai. This page is as current as the older of the two: .
- https://docs.x.ai/developers/pricing
- https://platform.kimi.ai/docs/pricing/chat
- https://docs.x.ai/developers/models
- https://docs.x.ai/developers/models/grok-4.7
- https://docs.x.ai/developers/models/grok-4.7.md
- https://docs.x.ai/developers/release-notes
- https://x.ai/news
- https://platform.kimi.ai/docs/guide/kimi-k3-quickstart
- https://platform.kimi.ai/docs/models.md
- https://platform.kimi.ai/docs/pricing/batch.md
- https://platform.kimi.ai/docs/platform-changelog.md
- https://www.kimi.ai/blog/kimi-k3
- https://huggingface.co/moonshotai/Kimi-K3
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