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GPT-5.2 vs Kimi K2 0905

GPT-5.2

OpenAI

91#19
vs
Kimi K2 0905

Moonshot AI

52#170
Signal-by-Signal Comparison
SignalGPT-5.2DeltaKimi K2 0905
Capabilities
100
+50
50
Benchmarks
89
+39
51
Pricing
86
-11
98
Context window size
89
+3
86
Recency
91
+18
73
Output Capacity
85
+2
83
Overall Result
5 wins
of 6
1 wins
GPT-5.2 wins 5 of 6 signals

Score History

Score History (24 data points)
GPT-5.2Kimi K2 0905
GPT-5.2

90.5

current score

Leader

GPT-5.2

right now

Kimi K2 0905

52.4

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

GPT-5.2

OpenAI

Per request$0.008750
Daily$29.17
Monthly$875.00
Annual$10500.00

Kimi K2 0905

Moonshot AI

Best Value
Per request$0.001850
Daily$6.17
Monthly$185.00
Annual$2220.00

Kimi K2 0905 saves you $690.00/month

That's $8280.00/year compared to GPT-5.2 at your current usage level of 100K calls/month.

79% cheaper
Choose Kimi K2 0905 for cost optimization

GPT-5.2 pricing:
Input:$1.75/M tokens
Output:$14.00/M tokens
Kimi K2 0905 pricing:
Input:$0.60/M tokens
Output:$2.50/M tokens
Winner
GPT-5.2

OpenAI

91

Composite Score

Kimi K2 0905

Moonshot AI

52

Composite Score

Signal-by-Signal Comparison
MetricGPT-5.2Kimi K2 0905Winner
Overall Score
91
52
GPT-5.2
Rank#19#170
GPT-5.2
Quality Rank#19#170
GPT-5.2
Adoption Rank#19#170
GPT-5.2
Parameters------
Context Window400K262K
GPT-5.2
Pricing$1.75/$14.00/M$0.60/$2.50/M--
Signal Scores
Capabilities
100
50
GPT-5.2
Benchmarks
89
51
GPT-5.2
Pricing
86
98
Kimi K2 0905
Context window size
89
86
GPT-5.2
Recency
91
73
GPT-5.2
Output Capacity
85
83
GPT-5.2
Benchmark Head-to-Head(11 benchmarks)
GPT-5.2: 1Kimi K2: 0
GPT-5.2
Kimi K2
Normalized 0-100%
MMLU
93.5%-
MMLU-Pro
86%-
GPQA Diamond
87%-
MATH-500
94%-
HumanEval
97%-
SWE-bench Verified
78%63.4%
IFEval
93%-
BBH
91.5%-
Arena Elo
1481-
LiveBench
77.5%-
HLE
37%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

GPT-5.2Elite Tier

Scores 91/100 (rank #19), placing it in the top 94% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Kimi K2 0905Competitive

Scores 52/100 (rank #170), placing it in the top 42% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.2 has a 38-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose GPT-5.2 when you need:

  • Processing long documents or large codebases (400K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving

Choose Kimi K2 0905 when you need:

  • High-volume production workloads where API costs must be minimized
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
GPT-5.2
Input cost$1.75/M tokens
Output cost$14.00/M tokens
Cost per quality point$0.174
Est. monthly (1M tokens/day)$236.25
Kimi K2 0905Best Value
Input cost$0.60/M tokens
Output cost$2.50/M tokens
Cost per quality point$0.059
Est. monthly (1M tokens/day)$46.50

Kimi K2 0905 offers 80% better value per quality point. At 1M tokens/day, you'd spend $46.50/month with Kimi K2 0905 vs $236.25/month with GPT-5.2 - a $189.75 monthly difference.

Latency & Speed
GPT-5.2Faster
Speed score0/100
Kimi K2 0905
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

GPT-5.2

Customer support chatbot

Suitable for user-facing chat with competitive response times. Kimi K2 0905 also offers lower per-token costs for high-volume support

GPT-5.2

Long document analysis

Larger context window (400K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-5.2

Batch data extraction

Lower output pricing ($2.50/M) reduces costs when processing thousands of records daily

Kimi K2 0905

Creative writing & content

Higher overall composite score (91/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.2

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-5.2
Which Should You Choose?
Our recommendation:
GPT-5.2

GPT-5.2 clearly outperforms Kimi K2 0905 with a significant 38.1-point lead. For most general use cases, GPT-5.2 is the stronger choice. However, Kimi K2 0905 may still excel in niche scenarios.

GPT-5.2
Recommended

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Moonshot AI

  • Choose for Cost - 80% lower pricing; better value at scale
Capability Comparison
CapabilityGPT-5.2Kimi K2 0905
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoningdiffers
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-5.2

OpenAI

$19.95
estimated monthly cost

Kimi K2 0905

Moonshot AI

Best Value
$4.08
estimated monthly cost

Kimi K2 0905 saves you $15.87/month

That's 80% cheaper than GPT-5.2 at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGPT-5.2Kimi K2 0905
Context Window400K262K
Max Output Tokens128,000100,352
Open SourceNoYes
CreatedDec 10, 2025Sep 4, 2025
Last updated: 58m ago

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