Kimi Linear 48B A3B Instruct vs GPT-5.1 (high): The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) Showdown

After a comprehensive analysis, GPT-5.1 (high) emerges as the superior choice for users prioritizing raw intelligence and reasoning. However, Kimi Linear 48B A3B Instruct remains a highly competitive option, especially for scenarios demanding faster response times and cost-efficiency. This detailed Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) comparison will break down every critical metric to help you make the best decision.

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Model Snapshot

Key decision metrics at a glance.

Kimi Linear 48B A3B Instruct

Other

Reasoning: 4
Coding: 1
Multimodal: 1
Long Context: 2
Blended Price / 1M tokens: $0.015
P95 Latency: 1000ms
Tokens per second: —

GPT-5.1 (high)

OpenAI

Reasoning: 9
Coding: 4
Multimodal: 4
Long Context: 6
Blended Price / 1M tokens: $0.003
P95 Latency: 1000ms
Tokens per second: 140.286tokens/sec

Overall Capabilities

The capability radar provides a holistic view of the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) matchup. This chart illustrates each model's strengths and weaknesses at a glance, forming a cornerstone of our Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) analysis.

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `Kimi Linear 48B A3B Instruct` vs `GPT-5.1 (high)`.

Benchmark Breakdown

For a granular look, this chart directly compares scores across standardized benchmarks. In the critical MMLU Pro test, a key part of the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) debate, Kimi Linear 48B A3B Instruct scores 40 against GPT-5.1 (high)'s 90. This data-driven approach is essential for any serious Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) comparison.

This grouped bar chart provides a side-by-side comparison for each benchmark metric.

Speed & Latency

Speed is a crucial factor in the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) decision for interactive applications. The metrics below highlight the trade-offs you should weigh before shipping to production.

Time to First Token

Kimi Linear 48B A3B Instruct300ms

GPT-5.1 (high)300ms

Tokens per Second

Kimi Linear 48B A3B Instruct66

GPT-5.1 (high)140.286

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The Economics of Kimi Linear 48B A3B Instruct vs GPT-5.1 (high)

Power is only one part of the equation. This Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) pricing analysis gives you a true sense of value.

Pricing Breakdown

Compare input and output pricing at a glance.

Real-World Cost Scenario

To process 1M input tokens and generate 250k output tokens, Kimi Linear 48B A3B Instruct would cost $0.018, whereas GPT-5.1 (high) would cost $0.004. This practical calculation is vital for any developer considering the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) choice.

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Which Model Wins the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) Battle for You?

Choose Kimi Linear 48B A3B Instruct if...

Cost is a secondary concern to power in your Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) decision.

You need the most advanced reasoning capabilities available.

Your use case demands cutting-edge AI performance.

Choose GPT-5.1 (high) if...

You need a highly responsive model for user-facing applications.

Your budget is a primary consideration in the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) choice.

You are developing at scale where operational costs are critical.

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Your Questions about the Kimi Linear 48B A3B Instruct vs GPT-5.1 (high) Comparison

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Data source: https://artificialanalysis.ai/