Output tokens cost $6.00 per million on grok-4.6 and $15.00 per million on kimi-k3. Input tokens cost $2.00 per million on grok-4.6 and $3.00 per million on kimi-k3. Cached input tokens are billed at $0.50 per million on grok-4.6 and $0.30 per million on kimi-k3. Context lengths are 500,000 tokens on grok-4.6 and 1,048,576 tokens on kimi-k3. Time to first token (TTFT) measured on AIHubMix is 1.4s on grok-4.6 and 5.1s on kimi-k3. Measured output throughput is 23.6 tok/s on grok-4.6 and 38.4 tok/s on kimi-k3.
grok-4.6
kimi-k3Grok 4.6 is xAI’s latest AI model, built on Grok 4.5, with a particular focus on long-running agents and more ambitious interactive and visual work. It can persistently complete complex, multi-step tasks—whether researching a topic, analyzing information, working across codebases, or turning an idea into a polished application or deliverable.
Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Daily traffic served through AIHubMix — how demand for each model is trending.
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
grok-4.6: $6.00/M output tokens; kimi-k3: $15.00/M. Use the cost calculator above to estimate your own workload.
grok-4.6: 1.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
grok-4.6 accepts 500,000 and kimi-k3 accepts 1,048,576 input tokens. Maximum output per request is 500,000 tokens on grok-4.6 and 1,048,576 tokens on kimi-k3.
kimi-k3 at 38.4 tok/s and grok-4.6 at 23.6 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
grok-4.6 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context; kimi-k3 accepts text, image and video input and supports thinking, function calling and structured outputs.
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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