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Moonshot AI (Kimi)

Kimi K2.7 Code

VS
OpenAI

GPT-5.5 Pro

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.5 Pro is the premium intelligence choice, scoring 58.6% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Kimi K2.7 Code is 39.4x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Kimi K2.7 Code offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.5 Pro fully justifies the cost.

Model Specs

Kimi K2.7 Code

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+)
58.6%
Reasoning (gpqa-diamond)
N/A

Cost & Performance

Cost (per 1M tokens)39.4x cheaper
$1.71Input: $0.95 | Output: $4.00
Context Window
262.14k tokens
Model Specs

GPT-5.5 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+)
96.2%

Cost & Performance

Cost (per 1M tokens)
$67.50Input: $30.00 | Output: $180.00
Context WindowLarger
1.05M tokens

Frequently Asked Questions

Kimi K2.7 Code is cheaper than GPT-5.5 Pro. Kimi K2.7 Code has a blended cost of $1.71/1M tokens, which is about 39.4x cheaper than GPT-5.5 Pro at $67.50/1M tokens.

Kimi K2.7 Code is better for coding tasks. It scores 58.6% on coding evaluations (swe-bench-pro) compared to GPT-5.5 Pro which scores N/A.

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