Compare

Gemini 2.5 Flash vs Kimi K3

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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Gemini 2.5 Flash
google/gemini-2.5-flash
Kimi K3
moonshot/kimi-k3
Provider
Google
Moonshot
Family
Modality
text
text
Context window
1,000,000 tok
1,048,576 tok
Max output
8,192 tok
32,768 tok
Released
2026-05-22
2026-07-16
License
Proprietary
Open-weight
Input price
$0.300 /1M
$3.00 /1M
Output price
$2.50 /1M
$15.00 /1M
Tools
yes
Streaming
yes
yes
Vision
yes
yes
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
Open in playground →
Open in playground →
Gemini 2.5 Flash
google/gemini-2.5-flash
Full spec →

Google's fast multimodal Gemini 2.5 model with strong reasoning and a 1M token context window.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows
Kimi K3
moonshot/kimi-k3
Full spec →

Kimi K3 is Moonshot's flagship 2.8 trillion-parameter model, built on Kimi Delta Attention (a hybrid linear attention mechanism) with Attention Residuals. It offers native visual understanding, always-on reasoning, and a 1M-token context window for long-horizon coding, knowledge work, and deep reasoning tasks.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows

Compare with another

Claude Opus 5 vs Kimi K3
anthropic/claude-opus-5 · moonshot/kimi-k3
Claude Opus 5 vs Gemini 2.5 Flash
anthropic/claude-opus-5 · google/gemini-2.5-flash
Grok 4.5 vs Kimi K3
xai/grok-4.5 · moonshot/kimi-k3
Grok 4.5 vs Gemini 2.5 Flash
xai/grok-4.5 · google/gemini-2.5-flash
Kimi K3 vs Gemini 3.6 Flash
moonshot/kimi-k3 · google/gemini-3.6-flash
Kimi K3 vs GPT-5.6 Sol
moonshot/kimi-k3 · openai/gpt-5.6-sol
Kimi K3 vs Claude Fable 5
moonshot/kimi-k3 · anthropic/claude-fable-5
Kimi K3 vs DeepSeek V4 Pro
moonshot/kimi-k3 · deepseek/deepseek-v4-pro
Kimi K3 vs Gemini 3.1 Pro
moonshot/kimi-k3 · google/gemini-3.1-pro
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# Gemini 2.5 Flash
client.chat.completions.create(
    model="google/gemini-2.5-flash",
    messages=[{"role":"user","content":"hello"}],
)

# Kimi K3
client.chat.completions.create(
    model="moonshot/kimi-k3",
    messages=[{"role":"user","content":"hello"}],
)
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