Model vs model
Grok 4.7 vs Kimi K3.1 Pro
Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index (55.1 vs 46.4), but costs 1.3× as much: $4 per 1M tokens blended against $3 for Grok 4.7. Pick Grok 4.7 for high-volume work where cost matters, and Kimi K3.1 Pro when quality matters most. The biggest gap is on Terminal-Bench 4.0 (terminal tasks), where Kimi K3.1 Pro scores 67.2 against 25.8 for Grok 4.7.
At a glance
Longer bar means the bigger number.
Blended price · per 1M tokens, lower is better
Intelligence Index · Artificial Analysis, higher is better
Context window · tokens it can read at once
Where they sit among all 31 models
Grok 4.7 ranks 8th of the 30 models with an Intelligence Index, Kimi K3.1 Pro 3rd. Up and to the left is smarter for less money. Hover or tap a dot for its numbers, then click it to compare that model with Grok 4.7.
Which one to pick
Pick Grok 4.7 if
- you want the lower bill ($3 vs $4 per 1M tokens blended)
- you need to send PDFs
Pick Kimi K3.1 Pro if
- you want the higher overall score (55.1 vs 46.4)
- you care about Terminal-Bench 4.0 (terminal tasks): 67.2 vs 25.8
- you care about AA-LCR (long documents): 86.3 vs 76.7
- you need a longer context window (1.05M vs 500K tokens)
How smart is each one?
Of the 10 scores both models have, Kimi K3.1 Pro is ahead on every one.
Every intelligence score we have
Out of 100, higher is better. Grok 4.7 Kimi K3.1 Pro
Overall
Intelligence Index
46.455.1
By field of work
Finance & accounting
51.956.5Legal
54.155.8Healthcare & medicine
47.9Kimi K3.1 Pro: not scored yet
Economics
55.760Engineering
47.455.9Strategy & operations
54.459.4
Benchmarks
Factual knowledge · SimpleQA
56Kimi K3.1 Pro: not scored yet
Hard reasoning · Humanity's Last Exam
43.152.5Scientific coding · SciCode
57.460.8Terminal tasks · Terminal-Bench 4.0
25.867.2Long documents · AA-LCR
76.7 · 86.3Uncensored · UGI
33.9Kimi K3.1 Pro: not scored yet
Our tests
Hallucination test · our test, higher means it made up less
93.4Kimi K3.1 Pro: not scored yet
Rule that has to last 4 turns · our test, % of tries passed
0Kimi K3.1 Pro: not scored yet
Three bullets, no letter e · our test, % of tries passed
100Kimi K3.1 Pro: not scored yet
The specs
| Spec | Grok 4.7 | Kimi K3.1 Pro |
|---|---|---|
| Input price | $2 per 1M | $2 per 1M |
| Output price | $6 per 1M | $10 per 1M |
| Context window | 500K | 1.05M |
| Max output | 500K | 1.05M |
| Accepts | Text, Image, PDF | Text, Image |
| Open weights | No | Yes |
| Lab | xAI | Kimi |
| Released | Sep 2026 | Oct 2026 |
| Knowledge cutoff | May 2026 | Not published |
Blended price weighs 3 parts input to 1 part output. List prices from models.dev.
Questions
Is Grok 4.7 or Kimi K3.1 Pro cheaper?
Grok 4.7 is cheaper. It charges $2 per 1M input tokens and $6 per 1M output tokens, against $2 and $10 for Kimi K3.1 Pro. Blended 3 parts input to 1 part output, that is $3 against $4 per 1M tokens.
Which is smarter, Grok 4.7 or Kimi K3.1 Pro?
Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index, 55.1 against 46.4 for Grok 4.7. The biggest differences are on Terminal-Bench 4.0 (25.8 vs 67.2) and AA-LCR (76.7 vs 86.3).
Which has the longer context window?
Kimi K3.1 Pro accepts 1.05M tokens, against 500K for Grok 4.7.
Can I compare Grok 4.7 and Kimi K3.1 Pro on my own prompt?
Yes. ModelCompare sends one prompt to both models at once and shows each answer side by side with what it cost. You can try it free without an account.
Related comparisons
Where the numbers come from
Intelligence Index and benchmark scores are from Artificial Analysis, at each model’s highest effort, except SimpleQA, which is from Epoch AI, and the Uncensored score, which is from the UGI Leaderboard. The hallucination test is ours: questions with one exact answer, fake evidence pushed against right answers and requests that tempt a model to name packages that don’t exist. Prices are list prices from models.dev. Example answers come from our own test runs. Updated October 23, 2026.