Monthly cost at list price for five common workloads. Token counts per unit are stated so you can scale them to your own traffic. A workload that does not fit a model's context window is marked rather than priced.
Workload (per month)
OpenAI: gpt-oss-120b (batch)
Qwen: Qwen3 VL 8B Thinking
Difference
Customer-support chatbot
50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens)
$4.94
$55.50
OpenAI: gpt-oss-120b (batch) saves $50.56
RAG search over documents
20,000 questions — each a question answered from ~8 retrieved passages (6,000 in / 500 out tokens)
$4.91
$42.60
OpenAI: gpt-oss-120b (batch) saves $37.69
Coding / tool-using agent
2,000 tasks — each a multi-step task with tool calls and file context (60,000 in / 6,000 out tokens)
$5.18
$46.80
OpenAI: gpt-oss-120b (batch) saves $41.62
Batch summarisation
10,000 documents — each a 6,000-word report summarised to a page (8,000 in / 600 out tokens)
$3.18
$27.00
OpenAI: gpt-oss-120b (batch) saves $23.82
Long-document analysis
500 documents — each a 150-page contract or codebase read in one pass (100,000 in / 2,000 out tokens)
$1.62
$11.10
OpenAI: gpt-oss-120b (batch) saves $9.48
Capabilities side by side
Capability
OpenAI: gpt-oss-120b (batch)
Qwen: Qwen3 VL 8B Thinking
What it lets you do
Tool / function calling
✓ Yes
✓ Yes
call your APIs and run agent loops
Structured output (JSON schema)
✓ Yes
✓ Yes
return JSON that validates against your schema
Reasoning / thinking mode
✓ Yes
✓ Yes
spend extra tokens thinking before answering hard problems
Image input
—
✓ Yes
read screenshots, charts and scanned pages
Audio input
—
—
take speech or audio directly
File / PDF input
—
—
accept documents without your own parsing step
Image output
—
—
generate images, not just text
Built-in web search
—
—
answer from live web results
Seed (reproducible sampling)
✓ Yes
✓ Yes
repeat a generation for tests and evals
Log-probabilities
—
✓ Yes
read token confidence for classification and scoring
From each model's published parameters and input/output types. “—” means not advertised, not proven absent.
cost matters at scale — it is 91% cheaper on a typical 3:1 input/output mix ($4.94 vs $55.50 a month for 50,000 support chats)
you generate long outputs in one go — up to 118K tokens (about 88,500 words) per response
Choose Qwen: Qwen3 VL 8B Thinking if…
you need image input — to read screenshots, charts and scanned pages; OpenAI: gpt-oss-120b (batch) does not advertise it
you need log-probabilities — to read token confidence for classification and scoring; OpenAI: gpt-oss-120b (batch) does not advertise it
Frequently asked questions
Is OpenAI: gpt-oss-120b (batch) better than Qwen: Qwen3 VL 8B Thinking?
Neither wins outright: OpenAI: gpt-oss-120b (batch) is the pick when cost matters at scale, Qwen: Qwen3 VL 8B Thinking when you need image input. In short: OpenAI: gpt-oss-120b (batch) when cost matters at scale, you generate long outputs in one go; Qwen: Qwen3 VL 8B Thinking when you need image input, you need log-probabilities.
Which is cheaper, OpenAI: gpt-oss-120b (batch) or Qwen: Qwen3 VL 8B Thinking?
OpenAI: gpt-oss-120b (batch) is cheaper: $0.06 vs $0.66 per 1M tokens at a typical 3:1 input/output mix, 91% less. For 50,000 support conversations a month that is $4.94 against $55.50.
How much do OpenAI: gpt-oss-120b (batch) and Qwen: Qwen3 VL 8B Thinking cost per million tokens?
OpenAI: gpt-oss-120b (batch) costs $0.03 per 1M input tokens and $0.14 per 1M output tokens; Qwen: Qwen3 VL 8B Thinking costs $0.18 input and $2.10 output. Output tokens are billed separately, so long answers shift the gap.
Which has the bigger context window, OpenAI: gpt-oss-120b (batch) or Qwen: Qwen3 VL 8B Thinking?
Both take 131K tokens per request — roughly 197 pages of text.
Do OpenAI: gpt-oss-120b (batch) and Qwen: Qwen3 VL 8B Thinking support function calling and JSON output?
gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...
Qwen3-VL-8B-Thinking is the reasoning-optimized variant of the Qwen3-VL-8B multimodal model, designed for advanced visual and textual reasoning across complex scenes, documents, and temporal sequences. It integrates enhanced multimodal alignment and...