Compare

Kimi-K2.6 vs Grok 4

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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Kimi-K2.6
moonshot/kimi-k2.6
Grok 4
xai/grok-4
Provider
Moonshot
xAI
Family
Kimi
Grok 4
Modality
text
text
Context window
262,144 tok
256,000 tok
Max output
16,384 tok
16,384 tok
Released
2026-04-20
2025-07-09
License
Open-weight
Proprietary
Input price
$0.950 /1M
$5.00 /1M
Output price
$4.00 /1M
$15.00 /1M
Cache read
$0.160 /1M
Tools
yes
yes
Streaming
yes
yes
Vision
yes
yes
JSON mode
yes
yes
Reasoning
yes
yes
Prompt caching
yes
Batch API
Try it
Open in playground →
Open in playground →
Kimi-K2.6
moonshot/kimi-k2.6
Full spec →

Kimi K2.6 is a frontier-scale open-source 1T parameter model with a 262.1k context window, multi-turn tool calling, vision inputs, and structured outputs for agentic workloads.

Strengths
  • Frontier-scale 1T parameters, open-weight
  • ~10× cheaper than Opus
  • Multi-turn tool calling + vision
Use cases
Code agentsLong-document reasoningCost-conscious production
Grok 4
xai/grok-4
Full spec →

xAI Grok 4 — frontier reasoning, tool use, long context.

Strengths
  • Real-time search awareness
  • Irreverent tone
  • Competitive math + code
Use cases
News-aware chatResearch with fresh dataCreative writing

Benchmarks

Kimi-K2.6
Grok 4
HumanEval
92.7
SWE-Bench
68.2

Source: each provider's published benchmarks. Higher is better. Run an eval to compare on your own data.

Compare with another

Claude Opus 4.7 vs Kimi-K2.6
anthropic/claude-opus-4.7 · moonshot/kimi-k2.6
Kimi-K2.6 vs GPT-5.4
moonshot/kimi-k2.6 · openai/gpt-5.4
Gemini 3.1 Pro vs Kimi-K2.6
google/gemini-3.1-pro · moonshot/kimi-k2.6
Kimi-K2.6 vs Kimi-K2.5
moonshot/kimi-k2.6 · moonshot/kimi-k2.5
Claude Opus 4.7 vs Grok 4
anthropic/claude-opus-4.7 · xai/grok-4
Grok 4 vs GPT-5.4
xai/grok-4 · openai/gpt-5.4
Kimi-K2.6 vs Llama-4-Scout-17b-16e-Instruct
moonshot/kimi-k2.6 · meta/llama-4-scout-17b-16e-instruct
GPT-5.5 Pro vs Grok 4
openai/gpt-5.5-pro · xai/grok-4
GPT-5.5 Pro vs Kimi-K2.6
openai/gpt-5.5-pro · moonshot/kimi-k2.6
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-...",
)

# Kimi-K2.6
client.chat.completions.create(
    model="moonshot/kimi-k2.6",
    messages=[{"role":"user","content":"hello"}],
)

# Grok 4
client.chat.completions.create(
    model="xai/grok-4",
    messages=[{"role":"user","content":"hello"}],
)
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