Model decision surface
Compare AI models
Start with Kimi K3 and GPT-6 Astra, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
Kimi K3 vs GPT-6 Astra
Live dataset updated 9/9/2026, 8:18:44 PM UTC
Open 1200×630 evidence receipt| Field | Kimi K3 Moonshot AI | GPT-6 Astra OpenAI |
|---|---|---|
| ModelCap position | #6 | #1 |
| Index score | 82.6 | 93.7 |
| Evidence | Measured6 public benchmark observations across 6 boards | Measured4 public benchmark observations across 4 boards |
| Input / 1M | $3.00 | $10.00 |
| Output / 1M | $15.00 | $50.00 |
| Pricing status | fresh | fresh |
| Context | 1M | 1M |
| Providers | 16 | 2 |
| Weight access | Restricted license | API only |
Decision facts
- Kimi K3 is #6; GPT-6 Astra is #1 on the same current language board.
- Index scores are 82.6 for Kimi K3 and 93.7 for GPT-6 Astra. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Both positions use Measured evidence.
- Listed output price per 1M tokens is $15.00 for Kimi K3 and $50.00 for GPT-6 Astra. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $13.50 for Kimi K3 versus $45.00 for GPT-6 Astra. Kimi K3 costs 70.0% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
- Published context is 1,048,576 tokens for Kimi K3 and 1,050,000 for GPT-6 Astra.
- Weight access differs: Kimi K3 is restricted; GPT-6 Astra is none.
- ModelCap currently lists 16 providers for Kimi K3 and 2 for GPT-6 Astra.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.