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KIMI K2.6 vs GPT-5.4

Comprehensive comparison between Moonshot AI's KIMI K2.6 and OpenAI's GPT-5.4. Compare pricing, performance, features, and user reviews.

kimi k2.6 vs gpt-5.4chinese open source vs openaikimi vs gpt 2026best open weight model

KIMI K2.6

Moonshot AI

Moonshot AI's latest open-weight flagship released April 13, 2026. A 1T-parameter MoE with 32B active per token and 256K context. Can dynamically scale to 300 sub-agents executing 4,000 coordinated steps, supporting 12-hour coding sessions. Outperforms GPT-5.4 and Claude Opus 4.6 on several coding benchmarks while being 5-6x cheaper than Sonnet 4.6.

$0.6/$2.5per M tokens
Details

GPT-5.4

OpenAI

OpenAI's most capable and efficient frontier model for professional work. Combines industry-leading coding with native computer use, 1M+ context window, and improved reasoning. First GPT model to beat human performance on desktop navigation tasks.

$2.5/$15per M tokens
Details

Specs Comparison

SpecificationKIMI K2.6GPT-5.4
Context Window256K1050K
Max Output0K128K
Input (per 1M tokens)$0.60$2.50
Output (per 1M tokens)$2.50$15.00
Reasoning
Open Source

Scenario Score Comparison

Coding
93
vs
94
Writing
76
vs
93
Translation
80
vs
—
Research
81
vs
—
App Building
86
vs
—

KIMI K2.6

Pros

  • + Open-weight from day 1
  • + Leads SWE-Bench Verified at 80.2%
  • + 5-6x cheaper than Claude Sonnet 4.6
  • + 300 parallel sub-agents (3x K2.5)
  • + 12-hour autonomous coding sessions

Cons

  • − Text only, no multimodal yet
  • − 1T params require serious GPU infrastructure to self-host
  • − Community data still limited (released just days ago)

GPT-5.4

Pros

  • + 1M+ context window (largest in GPT lineup)
  • + Native computer use capability
  • + 33% fewer hallucinations vs GPT-5.2
  • + Tool search reduces tokens by 47%
  • + Half the price of Claude Opus 4.6

Cons

  • − 2x pricing above 272K tokens
  • − 24% longer average responses (more output tokens)
  • − Health benchmarks slightly worse than 5.2
  • − Some users report benchmark-optimized feel

Recommendation

Choose KIMI K2.6 if you:

  • • Need open-weight from day 1
  • • Need leads swe-bench verified at 80.2%
  • • Need 5-6x cheaper than claude sonnet 4.6

Choose GPT-5.4 if you:

  • • Need 1m+ context window (largest in gpt lineup)
  • • Need native computer use capability
  • • Need 33% fewer hallucinations vs gpt-5.2

Based on scores across 5 scenarios, KIMI K2.6 performs better overall.

KIMI K2.6 Details GPT-5.4 Details

Get Started with KIMI K2.6

1Visit the provider's website
2Create an account
3Start using the model

Get Started with GPT-5.4

1Sign up at chat.openai.com
2Choose Plus ($20/mo) or Pro ($200/mo)
3Select GPT-5.4 in model picker

💡 Pro plan offers higher rate limits and priority access.

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