Gemini 3 Flash Preview (free) vs Kimi K3

Context lengths are 1,048,576 tokens on Gemini 3 Flash Preview (free) and 1,048,576 tokens on Kimi K3. On the LMArena coding leaderboard Gemini 3 Flash Preview (free) scores 1509 and Kimi K3 scores 1531.

Gemini 3 Flash Preview (free) Moonshot AI

Kimi K3

+ Add model · 2/4

Gemini 3 Flash Preview (free)

Google · text, image, audio, video → text

gemini-3-flash-preview-free is the free, publicly available version of gemini-3-flash-preview, offering the same model capabilities with usage limits in place to ensure service stability. Limits include up to 5 requests per minute, a maximum of 250 requests per day, and a daily quota of 500,000 tokens. Free usage is based on shared capacity and is limited in availability. This version is intended for testing and light usage; for consistent and reliable access, please switch to the paid model.

Input$0.00 /M

Output$0.00 /M

Details

Kimi K3

Moonshot AI · text, image, video → text

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.

Input$3.00 /M

Output$15.00 /M

Details

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Gemini 3 Flash Preview (free)

Kimi K3

Input /M

$0.00

$3.00

Output /M

$0.00

$15.00

Cache read /M

$0.00

$0.30

Context length

1,048,576

Max output

65,536

1,048,576

Time to First Token

0.9 s

Throughput

73.1 tok/s

Modalities

textimageaudiovideo

textimagevideo

Supported Parameters

toolsfunction callingstructured outputsthinking

thinkingfunction callingstructured outputs

API Formats

Released

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.

gemini-3-flash-preview-freekimi-k3

Tokens / day

Requests / day

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

gemini-3-flash-preview-freekimi-k3

Throughput (tok/s)

TTFT (s)

Uptime (%)

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text

gemini-3-flash-preview-freekimi-k3

1440148015201560

Overall

14731486

Coding

15091531

Math

14761476

Hard prompts

14921505

Instruction following

14581479

Multi-turn

14831499

Creative writing

14591470

Longer query

14751502

Chinese

15211527

English

14751491

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

Requests / day

Avg input tokens / request

Avg output tokens / request

Gemini 3 Flash Preview (free)

$0.00 /mo

Kimi K3

$405 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

How do their coding arena scores compare?

Kimi K3: 1531; Gemini 3 Flash Preview (free): 1509 (LMArena coding leaderboard).

How large is each context window?

Gemini 3 Flash Preview (free) accepts 1,048,576 and Kimi K3 accepts 1,048,576 input tokens. Maximum output per request is 65,536 tokens on Gemini 3 Flash Preview (free) and 1,048,576 tokens on Kimi K3.

What inputs and capabilities does each model support?

Gemini 3 Flash Preview (free) accepts text, image, audio and video input and supports tool calling, function calling, structured outputs and thinking; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.

Can I call Gemini 3 Flash Preview (free) 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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Gemini 3 Flash Preview (free) vs Kimi K3

Pricing & Specifications

Activity Past 30 Days

Tokens / day

Requests / day

Performance Past 3 Days

Throughput (tok/s)

TTFT (s)

Uptime (%)

LMArena Benchmarks

Cost calculator

FAQ

Popular comparisons

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Company

Developer

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