Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output. Features a 256K token context window, configurable thinking/reasoning mode, native function calling, and multilingual support across 140+ languages. Strong on coding, reasoning, and document understanding tasks. Apache 2.0 license.
Gemma 4 31B It vs Kimi K3
Output tokens cost $0.40 per million on Gemma 4 31B It and $15.00 per million on Kimi K3. Input tokens cost $0.14 per million on Gemma 4 31B It and $3.00 per million on Kimi K3. Context lengths are 262,100 tokens on Gemma 4 31B It and 1,048,576 tokens on Kimi K3. Time to first token (TTFT) measured on AIHubMix is 1.0s on Gemma 4 31B It and 0.9s on Kimi K3. Measured output throughput is 39.2 tok/s on Gemma 4 31B It and 73.1 tok/s on Kimi K3.
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.
Pricing & Specifications
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.
Activity Past 30 Days
Daily traffic served through AIHubMix — how demand for each model is trending.
Tokens / day
Requests / day
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
Cost calculator
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Gemma 4 31B It, Kimi K3?
Gemma 4 31B It: $0.40/M output tokens; Kimi K3: $15.00/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
Kimi K3: 0.9s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
Gemma 4 31B It accepts 262,100 and Kimi K3 accepts 1,048,576 input tokens. Maximum output per request is 131,100 tokens on Gemma 4 31B It and 1,048,576 tokens on Kimi K3.
Which one generates tokens faster?
Kimi K3 at 73.1 tok/s and Gemma 4 31B It at 39.2 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Can I call Gemma 4 31B It and Kimi K3 with the same API key?
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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