Cost per coding-agent request

Is GPT-5.5 or Qwen3.7 Plus cheaper for coding agents?

For coding agents, GPT-5.5 costs 15x as much as Qwen3.7 Plus per request ($0.21 vs $0.014 on our measured traffic), because GPT-5.5 lists at $5 input, $0.50 cached input and $30 output per million tokens against $0.32, $0.064 and $1.28 for Qwen3.7 Plus, and GPT-5.5 charges more for prompts over 272K tokens.

List prices: OpenAI API pricing, OpenRouter listed price, checked 2026-10-13. Request costs: Standard Compute gateway data, 79,301 coding-agent requests from 75 users, Sep 13 to Oct 12, 2026. How we compute this

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Cost per coding-agent request, side by side

Cost at list price	Qwen3.7 Plus	GPT-5.5
Prompt under 100K tokens50% of requests, 87% of input cached	$0.0064	$0.081
Prompt of 100K to 272K39% of requests, 88% of input cached	$0.017	$0.20
Prompt over 272K tokens11% of requests, 86% of input cached	$0.038	$0.86
Average request	$0.014	$0.21
100 requests	$1.39	$20.99
Median session16 requests; a session ends after 10 idle minutes	$0.18	$2.30
A month of regular usemedian of 20 users active on 5+ days	$22.60	$296

Each logged request priced at the listed rates above for its own token counts, including cache reads and any higher rate for long prompts. Average output: 698 tokens per request.

Benchmarks, speed and latency, side by side

Artificial Analysis	Qwen3.7 Plus	GPT-5.5
Intelligence Index10 evaluations, 0 to 100	25	38
Terminal-Bench 4.0agentic coding in a terminal	1.0%	14.6%
Output speedmedian	55 tokens/s	105 tokens/s
Time to first answer tokenincludes thinking time	39 s	71 s

Source: Artificial Analysis (artificialanalysis.ai). Measured variants: Qwen3.7 Plus, speed on Alibaba; GPT-5.5 (Xhigh), speed on OpenAI. Fetched October 13, 2026. Artificial Analysis runs Terminal-Bench 4.0 in its own setup, so its scores differ from the tbench.ai leaderboard.

What to watch for

The gap widens on long prompts: under 100K tokens GPT-5.5 costs 13x as much per request, over 272K 23x. GPT-5.5 is superseded: GPT-6.1 Sol costs $0.067 per request. The price is OpenRouter's listed rate on October 13, 2026, which can be a third-party host's; Alibaba's own API may charge differently.

FAQ

Is Qwen3.7 Plus cheaper than GPT-5.5 for coding agents?

Yes, at the listed prices. 100 average coding-agent requests cost $1.39 on Qwen3.7 Plus and $20.99 on GPT-5.5. A median 16-request session costs $0.18 vs $2.30. Measured on 79,301 real coding-agent requests (Sep 13 to Oct 12, 2026).

How much does a month of GPT-5.5 vs Qwen3.7 Plus cost?

For the median regular user in our data (1,478 requests in 30 days), about $296 on GPT-5.5 and $22.60 on Qwen3.7 Plus at list price. Heavier users pay proportionally more.

GPT-5.5 vs Qwen3.7 Plus: which is better for agents?

GPT-5.5 scores higher on output quality (7.6/10 vs 5.7/10), while Qwen3.7 Plus is the cheaper option. GPT-5.5 is best for existing GPT-5.5 setups on an API key until they move to GPT-6.1 Sol; Qwen3.7 Plus is best for simple, long-context calls on a budget. Live community votes on this page show what people actually prefer.

Can I switch between GPT-5.5 and Qwen3.7 Plus in the same agent?

Yes. Model-agnostic agents (Cline, Aider, OpenClaw, Hermes Agent, Kilo Code, OpenCode, Continue) let you swap models per task. Many people route hard tasks to the stronger model and routine work to the cheaper one.