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GPT 5.1 vs Kimi K2.7 Code

At a glance
OpenAIGPT 5.1

Frontier-grade model with strong general-purpose reasoning.

82400K ctx$1.25/$10.00 per M#21/92
MoonshotAIKimi K2.7 Code

MoonshotAI's coding-focused Kimi model for end-to-end software engineering.

82262K ctx$0.74/$3.50 per M#20/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
OpenAIGPT 5.1
Reasoning
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI81.6
Reasoning & Knowledge
Graduate Science87.6%Factual Recall48.9%
Math
Competition Math88.6%Research Math31.0%
Coding
Real-World Coding68.0%
Agentic
Terminal Tasks47.6%Novel Reasoning17.6%
MoonshotAIKimi K2.7 Code
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
SmarterCheaper
Capability
CapabilityECI81.8
Reasoning & Knowledge
Graduate Science89.5%Factual Recall39.2%
Math
Competition Math96.4%Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—
Specs
OpenAIGPT 5.1
400K
Context
128K
Max output
Nov 2025
Released
MoonshotAIKimi K2.7 Code
262K
Context
16K
Max output
Jun 2026
Released
Capabilities
OpenAIGPT 5.1
Vision
Audio
Reasoning
MoonshotAIKimi K2.7 Code
Vision
Audio
Reasoning
Pricing
OpenAIGPT 5.1
Live pricing, shown before you run
Input$1.25/M tokens
Output$10.00/M tokens
Cache read$0.13/M tokens
Web search$0.01/search
MoonshotAIKimi K2.7 Code
Live pricing, shown before you run
Input$0.74/M tokens
Output$3.50/M tokens
Cache read$0.15/M tokens
Chat with GPT 5.1Go to model
Chat with Kimi K2.7 CodeGo to model
Frequently Asked Questions: GPT 5.1 vs Kimi K2.7 Code▼

Which is better, GPT 5.1 or Kimi K2.7 Code?

▼

Based on the Capability Index, Kimi K2.7 Code scores higher (81.8 vs 81.6). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, GPT 5.1 or Kimi K2.7 Code?

▼

Kimi K2.7 Code has a lower blended cost. GPT 5.1: $1.25 input / $10.00 output. Kimi K2.7 Code: $0.74 input / $3.50 output.

Which has a larger context window, GPT 5.1 or Kimi K2.7 Code?

▼

GPT 5.1 has a larger context window: GPT 5.1 supports 400K tokens vs Kimi K2.7 Code at 262K tokens.

Do both GPT 5.1 and Kimi K2.7 Code support vision?

▼

Yes, both GPT 5.1 and Kimi K2.7 Code support vision/image input.

What are the key differences between GPT 5.1 and Kimi K2.7 Code?

▼

GPT 5.1 and Kimi K2.7 Code have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 5.1 and Kimi K2.7 Code for free on idapt.app to see which performs better for your specific needs.

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