Pairwise benchmark snapshot · Aug 17, 2026

Kimi Chat 1.5 vs Qwen 2.5 Plus benchmark

Name: Kimi Chat 1.5 vs Qwen 2.5 Plus AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Kimi Chat 1.5 (Moonshot) and Qwen 2.5 Plus (Alibaba) using the latest snapshots we have as of Aug 17, 2026. On preference Elo, Qwen 2.5 Plus is ahead by 25 points (1,445 vs 1,420; lmarena (Aug 17, 2026)). On SWE-bench coding, Qwen 2.5 Plus resolves 59.2% versus 51% (swebench (Aug 17, 2026)). Qwen 2.5 Plus streams faster (110 tok/s) while Kimi Chat 1.5 is the cheaper output token ($0.8/1M). Kimi Chat 1.5 has the larger context window (2M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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Moonshot

Kimi Chat 1.5

Moonshot ultra-long context model supporting up to 2 million tokens per request.

2M ContextElo 1,420$0.8/1M out

Alibaba

Qwen 2.5 Plus

Alibaba balanced flagship API model with high-throughput general reasoning.

Elo 1,445$1/1M out

Model Lineage & Multi-Tier Derivatives🇨🇳 CN Frontier

Kimi Series Family (4 models)

Compare vs Base (Kimi K3)

Kimi K3

Moonshot

Flagship Base

CoT Scaler

Elo

1528

Speed

68 tok/s

Price

$15.00 / 1M

View model →vs this

MoonshotAI: Kimi K2.5

Moonshot

K2.5 Max

CoT Scaler

Elo

1515

Speed

72 tok/s

Price

$2.85 / 1M

-13 Elo-81% cost1.1x speed

View model →vs this

MoonshotAI: Kimi K2 0711

Moonshot

K2 Base

Elo

1465

Speed

85 tok/s

Price

$2.30 / 1M

-63 Elo-85% cost1.3x speed

View model →vs this

Kimi Chat 1.5

Moonshot

2M Context

Elo

1420

Speed

95 tok/s

Price

$0.80 / 1M

-108 Elo-95% cost1.4x speed

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Kimi Chat 1.5 (3)vsQwen 2.5 Plus (7)

Kimi Chat 1.5: 3W (30%)Overall: Qwen 2.5 PlusQwen 2.5 Plus: 7W (70%)

← Kimi Chat 1.5Qwen 2.5 Plus →

Qwen 2.5 Plus (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,420vs1,445

Coding Elo

1,390vs1,460

SWE-bench

51%vs59.2%

LiveBench

58%vs63.5%

GPQA Diamond

71.5%vs75.8%

Kimi Chat 1.5: 0WQwen 2.5 Plus: 5W

Qwen 2.5 Plus (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

95 tok/svs110 tok/s

Time to first token

210 msvs180 ms

Kimi Chat 1.5: 0WQwen 2.5 Plus: 2W

Kimi Chat 1.5 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.8/1Mvs$1/1M

Input price

$0.2/1Mvs$0.25/1M

Context window

2Mvs128k

Kimi Chat 1.5: 3WQwen 2.5 Plus: 0W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageQwen 2.5 Plus 4/6

Preference Elo

Qwen 2.5 Plus

25 pts advantage

Throughput Speed

Qwen 2.5 Plus

15 tok/s faster

Token Price Efficiency

Kimi Chat 1.5

$0.20/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,420

EloHigh is better

1,445+2%

Code Elo

High is better

1,390

Code EloHigh is better

1,460+5%

LiveBench

High is better

58%

LiveBenchHigh is better

63.5%+9%

SWE-bench

High is better

51%

SWE-benchHigh is better

59.2%+16%

GPQA

High is better

71.5%

GPQAHigh is better

75.8%+6%

TTFT

Low is better

210 ms

TTFTLow is better

180 ms+17%

Speed

High is better

95 tok/s

SpeedHigh is better

110 tok/s+16%

In $

Low is better

+25%$0.20 / 1M

In $Low is better

$0.25 / 1M

Out $

Low is better

+25%$0.80 / 1M

Out $Low is better

$1.00 / 1M

Context

High is better

+1463%2M

ContextHigh is better

128k

Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 20% with Kimi Chat 1.5

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Kimi Chat 1.5$19.00 / mo

In: $7Out: $12

Qwen 2.5 Plus$23.75 / mo

In: $8.75Out: $15

Estimated Cost Delta

Kimi Chat 1.5 is estimated to save $4.75/month ($57/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Qwen 2.5 Plus:Pick Qwen 2.5 Plus when repo-level coding accuracy is the constraint.
2
Kimi Chat 1.5:Pick Kimi Chat 1.5 when you are optimizing output cost.
3
Qwen 2.5 Plus:Pick Qwen 2.5 Plus when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsQwen 2.5 Plus

Higher SWE-bench (59.2%).

High-volume chatKimi Chat 1.5

Lower output list price ($0.8/1M).

Voice / low-latency UIQwen 2.5 Plus

Lower TTFT (180 ms).

Long-document RAGKimi Chat 1.5

Larger window (2M).

Screenshots / visionQwen 2.5 Plus

Qwen 2.5 Plus is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Qwen 2.5 Plus	Higher SWE-bench (59.2%).
High-volume chat	Kimi Chat 1.5	Lower output list price ($0.8/1M).
Voice / low-latency UI	Qwen 2.5 Plus	Lower TTFT (180 ms).
Long-document RAG	Kimi Chat 1.5	Larger window (2M).
Screenshots / vision	Qwen 2.5 Plus	Qwen 2.5 Plus is the side marked multimodal in the catalog.

Community Sentiment

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CompareLLM Matrix

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LIVE

Moonshot

Kimi Chat 1.5

Elo 1,420

LiveBench58%

SWE-bench51%

Speed95 tok/s

Output cost$0.8/1M

Alibaba

Qwen 2.5 Plus

Elo 1,445

LiveBench63.5%

SWE-bench59.2%

Speed110 tok/s

Output cost$1/1M

Frequently Asked Questions

Which is better overall, Kimi Chat 1.5 or Qwen 2.5 Plus?: Qwen 2.5 Plus has the higher preference Elo in our latest snapshot (1,445). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Kimi Chat 1.5 or Qwen 2.5 Plus?: Qwen 2.5 Plus leads SWE-bench at 59.2% vs 51%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Kimi Chat 1.5 output tokens are $0.8/1M versus $1/1M. Input prices and retry rates still move the real bill.
Which is faster, Kimi Chat 1.5 or Qwen 2.5 Plus?: Qwen 2.5 Plus has the lower time-to-first-token (180 ms vs 210 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: Kimi Chat 1.5 accepts 2M tokens versus 128k.
Can I self-host either model?: Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Kimi Chat 1.5 and Qwen 2.5 Plus Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Kimi Chat 1.5 matchups →|All Qwen 2.5 Plus matchups →

Kimi Chat 1.5 vs MoonshotAI: Kimi K2 0711 (next kimi)Qwen 2.5 Plus vs Qwen2.5 Coder 32B Instruct (previous qwen)Qwen 2.5 Plus vs Qwen 2.5 Coder 32B (next qwen)Qwen 3 Max vs Qwen 2.5 Plus Kimi K3 vs Qwen 2.5 Plus Qwen QwQ 32B vs Qwen 2.5 Plus

Kimi Chat 1.5 vs Qwen 2.5 Plus benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Kimi Chat 1.5 (3)vsQwen 2.5 Plus (7)

Kimi Chat 1.5: 3W (30%)Overall: Qwen 2.5 PlusQwen 2.5 Plus: 7W (70%)

← Kimi Chat 1.5Qwen 2.5 Plus →

Qwen 2.5 Plus (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,420vs1,445

Coding Elo

1,390vs1,460

SWE-bench

51%vs59.2%

LiveBench

58%vs63.5%

GPQA Diamond

71.5%vs75.8%

Kimi Chat 1.5: 0WQwen 2.5 Plus: 5W

Qwen 2.5 Plus (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

95 tok/svs110 tok/s

Time to first token

210 msvs180 ms

Kimi Chat 1.5: 0WQwen 2.5 Plus: 2W

Kimi Chat 1.5 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.8/1Mvs$1/1M

Input price

$0.2/1Mvs$0.25/1M

Context window

2Mvs128k

Kimi Chat 1.5: 3WQwen 2.5 Plus: 0W

Recommended Workload Routing

Repo / coding agentsQwen 2.5 Plus

Higher SWE-bench (59.2%).

High-volume chatKimi Chat 1.5

Lower output list price ($0.8/1M).

Voice / low-latency UIQwen 2.5 Plus

Lower TTFT (180 ms).

Long-document RAGKimi Chat 1.5

Larger window (2M).

Screenshots / visionQwen 2.5 Plus

Qwen 2.5 Plus is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Qwen 2.5 Plus	Higher SWE-bench (59.2%).
High-volume chat	Kimi Chat 1.5	Lower output list price ($0.8/1M).
Voice / low-latency UI	Qwen 2.5 Plus	Lower TTFT (180 ms).
Long-document RAG	Kimi Chat 1.5	Larger window (2M).
Screenshots / vision	Qwen 2.5 Plus	Qwen 2.5 Plus is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Kimi Chat 1.5 or Qwen 2.5 Plus?

Qwen 2.5 Plus has the higher preference Elo in our latest snapshot (1,445). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Kimi Chat 1.5 or Qwen 2.5 Plus?

Qwen 2.5 Plus leads SWE-bench at 59.2% vs 51%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Kimi Chat 1.5 output tokens are $0.8/1M versus $1/1M. Input prices and retry rates still move the real bill.

Which is faster, Kimi Chat 1.5 or Qwen 2.5 Plus?

Qwen 2.5 Plus has the lower time-to-first-token (180 ms vs 210 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

Kimi Chat 1.5 accepts 2M tokens versus 128k.

Can I self-host either model?

Neither model is marked open-weights here. You are comparing hosted APIs.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Kimi Chat 1.5 and Qwen 2.5 Plus Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.