💰 Unit Cost Winner Qwen 3.8 27B $0.20/1M in · $0.60/1M out
⚡ Latency & Speed Winner Qwen 3.8 27B 120ms TTFT · 140 tok/s
💻 Coding (SWE) Winner GPT-6.1 Sol 86.4% SWE-bench · 96.8% HumanEval
🧠 STEM Reasoning Winner GPT-6.1 Sol 92.4% GPQA · 98.8% MATH-500

Which model is better: GPT-6.1 Sol or Qwen 3.8 27B?

Qwen 3.8 27B is 90.0% cheaper for input tokens ($0.20 vs. $2.00 per 1M tokens) and $0.60 vs. $10.00 for output tokens (10.0x cost advantage). In terms of operational performance, Qwen 3.8 27B delivers lower response latency at 120ms TTFT (400ms faster than GPT-6.1 Sol) with 140 vs. 135 tok/s throughput. GPT-6.1 Sol leads coding evaluations at 86.4% SWE-bench Verified vs. 58.4% for Qwen 3.8 27B and 92.4% vs. 68.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta (12 Dimensions)

Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.

Metric / Dimension GPT-6.1 Sol Qwen 3.8 27B Net Delta / Advantage
Input Cost / 1M Tokens $2.00 $0.20 Qwen 3.8 27B is 10.0x cheaper
Output Cost / 1M Tokens $10.00 $0.60 Qwen 3.8 27B (94.0% lower)
Prompt Cache Read / 1M $0.100 $0.050 Qwen 3.8 27B is 2.0x cheaper
Prompt Cache Write / 1M $2.00 $0.20 Qwen 3.8 27B is 10.0x cheaper
Context Window (Max Output) 1,075k (128k out) 131k (16k out) GPT-6.1 Sol (8.2x larger context)
Avg TTFT Response Latency 520ms 120ms Qwen 3.8 27B (400ms faster)
Generation Speed (Throughput) 135 tok/s 140 tok/s Qwen 3.8 27B (+5 tok/s faster)
SWE-bench Verified (Coding) 86.4% 58.4% GPT-6.1 Sol (+28.0% lead)
GPQA Diamond (PhD STEM) 92.4% 68% GPT-6.1 Sol (+24.4% lead)
MMLU-Pro (Multi-Discipline) 91% 81.2% GPT-6.1 Sol (+9.8% lead)
MATH-500 (Quantitative Logic) 98.8% 86.4% GPT-6.1 Sol (+12.4% lead)
Inference Value Score (IVR) 62.9 / 100 74.9 / 100 Qwen 3.8 27B (+12 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

GPT-6.1 Sol $76.25

$2.00/1M in · $10.00/1M out

Prompt Cache: $0.100/1M read · $2.00/1M write

Qwen 3.8 27B $6.13

$0.20/1M in · $0.60/1M out

Prompt Cache: $0.050/1M read · $0.20/1M write

Projected Monthly Cost Reduction
$70.13 / mo
(92.0% lower cost with Qwen 3.8 27B)
Open Full Matchup Analysis →
A

When to Choose GPT-6.1 Sol

Choose GPT-6.1 Sol (OpenAI) for delivers near-GPT-6 Astra frontier accuracy at one-fifth the token cost with a 95% cache read discount for high-efficiency agentic coding, computer use, and enterprise workflow automation — offering a 1,075k context window, 520ms TTFT, and $2.00/1M input pricing ($0.100/1M cached reads).

B

When to Choose Qwen 3.8 27B

Choose Qwen 3.8 27B (Alibaba Cloud) for high-performance 27B open weights optimized for local deployment, code generation, and low-latency production pipelines — offering a 131k context window, 120ms TTFT, and $0.20/1M input pricing ($0.050/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: GPT-6.1 Sol or Qwen 3.8 27B?

Qwen 3.8 27B is cheaper at $0.20/1M input tokens ($0.60/1M output) compared to $2.00/1M input ($10.00/1M output) for GPT-6.1 Sol.

Which model has lower TTFT latency and higher tok/s throughput: GPT-6.1 Sol or Qwen 3.8 27B?

Qwen 3.8 27B delivers faster first-token latency at 120ms TTFT (140 tok/s throughput) compared to 520ms TTFT (135 tok/s) for GPT-6.1 Sol.

How do GPT-6.1 Sol and Qwen 3.8 27B compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, GPT-6.1 Sol scores 86.4% versus 58.4% for Qwen 3.8 27B. On GPQA Diamond graduate-level STEM reasoning, GPT-6.1 Sol scores 92.4% versus 68% for Qwen 3.8 27B (and 98.8% vs 86.4% on MATH-500).

When should you choose GPT-6.1 Sol?

Choose GPT-6.1 Sol (OpenAI) for delivers near-GPT-6 Astra frontier accuracy at one-fifth the token cost with a 95% cache read discount for high-efficiency agentic coding, computer use, and enterprise workflow automation — offering a 1,075k context window, 520ms TTFT, and $2.00/1M input pricing ($0.100/1M cached reads).

When should you choose Qwen 3.8 27B?

Choose Qwen 3.8 27B (Alibaba Cloud) for high-performance 27B open weights optimized for local deployment, code generation, and low-latency production pipelines — offering a 131k context window, 120ms TTFT, and $0.20/1M input pricing ($0.050/1M cached reads).

Explore High-Priority Related Model Matchups