Pairwise benchmark snapshot · Aug 1, 2026

GPT-4.5 Orion vs Qwen 2.5 Plus benchmark

Name: GPT-4.5 Orion vs Qwen 2.5 Plus AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares GPT-4.5 Orion (OpenAI) and Qwen 2.5 Plus (Alibaba) using the latest snapshots we have as of Aug 1, 2026. On preference Elo, GPT-4.5 Orion is ahead by 95 points (1,540 vs 1,445; seed-bootstrap (Aug 1, 2026)). On SWE-bench coding, GPT-4.5 Orion resolves 71% versus 59.2% (seed-bootstrap (Aug 1, 2026)). Qwen 2.5 Plus streams faster (110 tok/s) while Qwen 2.5 Plus is the cheaper output token ($1/1M). GPT-4.5 Orion has the larger context window (128k 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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OpenAI

GPT-4.5 Orion

OpenAI largest dense non-reasoning model with expansive world knowledge and reduced hallucinations.

Elo 1,540$150/1M out

Alibaba

Qwen 2.5 Plus

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

Elo 1,445$1/1M out

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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.

GPT-4.5 Orion (5)vsQwen 2.5 Plus (4)

GPT-4.5 Orion: 5W (56%)Overall: GPT-4.5 OrionQwen 2.5 Plus: 4W (44%)

← GPT-4.5 Orion1 tiesQwen 2.5 Plus →

GPT-4.5 Orion (5/5)

Intelligence & Reasoning

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

Preference Elo

1,540vs1,445

Coding Elo

1,520vs1,460

SWE-bench

71%vs59.2%

LiveBench

68.5%vs63.5%

GPQA Diamond

84%vs75.8%

GPT-4.5 Orion: 5WQwen 2.5 Plus: 0W

Qwen 2.5 Plus (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

60 tok/svs110 tok/s

Time to first token

350 msvs180 ms

GPT-4.5 Orion: 0WQwen 2.5 Plus: 2W

Qwen 2.5 Plus (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$150/1Mvs$1/1M

Input price

$75/1Mvs$0.25/1M

Context window

128kvs128k

GPT-4.5 Orion: 0WQwen 2.5 Plus: 2W

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 AdvantageGPT-4.5 Orion 3/6

Preference Elo

GPT-4.5 Orion

95 pts advantage

Throughput Speed

Qwen 2.5 Plus

50 tok/s faster

Price Efficiency

Qwen 2.5 Plus

$149.00/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

+7%1,540

EloHigh is better

1,445

Code Elo

High is better

+4%1,520

Code EloHigh is better

1,460

LiveBench

High is better

+8%68.5%

LiveBenchHigh is better

63.5%

SWE-bench

High is better

+20%71%

SWE-benchHigh is better

59.2%

GPQA

High is better

+11%84%

GPQAHigh is better

75.8%

TTFT

Low is better

350 ms

TTFTLow is better

180 ms+94%

Speed

High is better

60 tok/s

SpeedHigh is better

110 tok/s+83%

In $

Low is better

$75/1M

In $Low is better

$0.25/1M+29900%

Out $

Low is better

$150/1M

Out $Low is better

$1/1M+14900%

Context

High is better

128k

ContextHigh is better

128k

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 100% with Qwen 2.5 Plus

Monthly Volume50M tokens/mo

Quick Presets:

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

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

GPT-4.5 Orion$4,875.00 / mo

In: $2625.00Out: $2250.00

Qwen 2.5 Plus$23.75 / mo

In: $8.75Out: $15.00

Estimated Cost Delta

Qwen 2.5 Plus is estimated to save $4,851.25/month ($58,215/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
GPT-4.5 Orion:Pick GPT-4.5 Orion when repo-level coding accuracy is the constraint.
2
Qwen 2.5 Plus:Pick Qwen 2.5 Plus 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 agentsGPT-4.5 Orion

Higher SWE-bench (71%).

High-volume chatQwen 2.5 Plus

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

Voice / low-latency UIQwen 2.5 Plus

Lower TTFT (180 ms).

Long-document RAGGPT-4.5 Orion

Larger window (128k).

Screenshots / visionGPT-4.5 Orion

Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	GPT-4.5 Orion	Higher SWE-bench (71%).
High-volume chat	Qwen 2.5 Plus	Lower output list price ($1/1M).
Voice / low-latency UI	Qwen 2.5 Plus	Lower TTFT (180 ms).
Long-document RAG	GPT-4.5 Orion	Larger window (128k).
Screenshots / vision	GPT-4.5 Orion	Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion).

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CompareLLM Matrix

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LIVE

OpenAI

GPT-4.5 Orion

Elo 1,540

LiveBench68.5%

SWE-bench71%

Speed60 tok/s

Output cost$150/1M

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, GPT-4.5 Orion or Qwen 2.5 Plus?: GPT-4.5 Orion has the higher preference Elo in our latest snapshot (1,540). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, GPT-4.5 Orion or Qwen 2.5 Plus?: GPT-4.5 Orion leads SWE-bench at 71% vs 59.2%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Qwen 2.5 Plus output tokens are $1/1M versus $150/1M. Input prices and retry rates still move the real bill.
Which is faster, GPT-4.5 Orion or Qwen 2.5 Plus?: Qwen 2.5 Plus has the lower time-to-first-token (180 ms vs 350 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: GPT-4.5 Orion accepts 128k 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. GPT-4.5 Orion 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 GPT-4.5 Orion matchups →|All Qwen 2.5 Plus matchups →

GPT-4.5 Orion vs OpenAI: o1 (previous gpt-flagship)GPT-4.5 Orion vs GPT-5 (next gpt-flagship)Qwen 2.5 Plus vs Qwen 2.5 Coder 32B (next qwen)GPT-5.6 Terra vs GPT-4.5 Orion Qwen 3 Max vs GPT-4.5 Orion GPT-5.6 Sol vs GPT-4.5 Orion

GPT-4.5 Orion vs Qwen 2.5 Plus benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

GPT-4.5 Orion (5)vsQwen 2.5 Plus (4)

GPT-4.5 Orion: 5W (56%)Overall: GPT-4.5 OrionQwen 2.5 Plus: 4W (44%)

← GPT-4.5 Orion1 tiesQwen 2.5 Plus →

GPT-4.5 Orion (5/5)

Intelligence & Reasoning

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

Preference Elo

1,540vs1,445

Coding Elo

1,520vs1,460

SWE-bench

71%vs59.2%

LiveBench

68.5%vs63.5%

GPQA Diamond

84%vs75.8%

GPT-4.5 Orion: 5WQwen 2.5 Plus: 0W

Qwen 2.5 Plus (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

60 tok/svs110 tok/s

Time to first token

350 msvs180 ms

GPT-4.5 Orion: 0WQwen 2.5 Plus: 2W

Qwen 2.5 Plus (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$150/1Mvs$1/1M

Input price

$75/1Mvs$0.25/1M

Context window

128kvs128k

GPT-4.5 Orion: 0WQwen 2.5 Plus: 2W

Recommended Workload Routing

Repo / coding agentsGPT-4.5 Orion

Higher SWE-bench (71%).

High-volume chatQwen 2.5 Plus

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

Voice / low-latency UIQwen 2.5 Plus

Lower TTFT (180 ms).

Long-document RAGGPT-4.5 Orion

Larger window (128k).

Screenshots / visionGPT-4.5 Orion

Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	GPT-4.5 Orion	Higher SWE-bench (71%).
High-volume chat	Qwen 2.5 Plus	Lower output list price ($1/1M).
Voice / low-latency UI	Qwen 2.5 Plus	Lower TTFT (180 ms).
Long-document RAG	GPT-4.5 Orion	Larger window (128k).
Screenshots / vision	GPT-4.5 Orion	Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion).

Frequently Asked Questions

Which is better overall, GPT-4.5 Orion or Qwen 2.5 Plus?

GPT-4.5 Orion has the higher preference Elo in our latest snapshot (1,540). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, GPT-4.5 Orion or Qwen 2.5 Plus?

GPT-4.5 Orion leads SWE-bench at 71% vs 59.2%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Qwen 2.5 Plus output tokens are $1/1M versus $150/1M. Input prices and retry rates still move the real bill.

Which is faster, GPT-4.5 Orion or Qwen 2.5 Plus?

Qwen 2.5 Plus has the lower time-to-first-token (180 ms vs 350 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

GPT-4.5 Orion accepts 128k 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. GPT-4.5 Orion and Qwen 2.5 Plus Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.