LLM Reference

GPT-5 vs Qwen3-9B

GPT-5 (2025) and Qwen3-9B (2025) are frontier reasoning models from OpenAI and Alibaba. GPT-5 ships a 400k-token context window, while Qwen3-9B ships a 256k-token context window. On pricing, Qwen3-9B costs $0.04/1M input tokens versus $1.25/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Qwen3-9B is ~3025% cheaper at $0.04/1M; pay for GPT-5 only for coding workflow support.

Decision scorecard

Local evidence first
SignalGPT-5Qwen3-9B
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsgeneral production evaluation
Decision fitCoding, RAG, and AgentsRAG, Long context, and Classification
Context window400k256k
Cheapest output$10/1M tokens$0.20/1M tokens
Provider routes4 tracked1 tracked
Shared benchmarks0 rows0 rows

Decision tradeoffs

Choose GPT-5 when...
  • GPT-5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • GPT-5 has broader tracked provider coverage for fallback and procurement flexibility.
  • GPT-5 uniquely exposes Vision, Multimodal, and Reasoning in local model data.
  • Local decision data tags GPT-5 for Coding, RAG, and Agents.
Choose Qwen3-9B when...
  • Qwen3-9B has the lower cheapest tracked output price at $0.20/1M tokens.
  • Local decision data tags Qwen3-9B for RAG, Long context, and Classification.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Qwen3-9B

GPT-5

$3,500

Cheapest tracked route/tier: Replicate API

Qwen3-9B

$82.00

Cheapest tracked route/tier: DeepInfra

Estimated monthly gap: $3,418. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

GPT-5 -> Qwen3-9B
  • No overlapping tracked provider route is sourced for GPT-5 and Qwen3-9B; plan for SDK, billing, or endpoint changes.
  • Qwen3-9B is $9.80/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
Qwen3-9B -> GPT-5
  • No overlapping tracked provider route is sourced for Qwen3-9B and GPT-5; plan for SDK, billing, or endpoint changes.
  • GPT-5 is $9.80/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • GPT-5 adds Vision, Multimodal, and Reasoning in local capability data.

Specs

Specification
Released2025-08-072025-04-28
Context window400k256k
Parameters9B
Architecturedecoder onlydecoder only
LicenseProprietaryApache 2.0(OSI)
OpennessProprietaryOpen source
Commercial useCommercial use with conditionsCommercial use allowed
Knowledge cutoff2024-09-

Pricing and availability

Pricing attributeGPT-5Qwen3-9B
Input price$1.25/1M tokens$0.04/1M tokens
Output price$10/1M tokens$0.20/1M tokens
Providers

Capabilities

CapabilityGPT-5Qwen3-9B
VisionYesNo
MultimodalYesNo
ReasoningYesNo
Function callingYesNo
Tool useYesNo
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark rows are currently sourced for this pair.

Deep dive

The capability footprint differs most on vision: GPT-5, multimodal input: GPT-5, reasoning mode: GPT-5, function calling: GPT-5, tool use: GPT-5, and code execution: GPT-5. Both models share structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.

For cost, GPT-5 lists $1.25/1M input and $10/1M output tokens on the cheapest tracked provider, while Qwen3-9B lists $0.04/1M input and $0.20/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Qwen3-9B lower by about $3.79 per million blended tokens. Availability is 4 providers versus 1, so concentration risk also matters.

Choose GPT-5 when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Qwen3-9B when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.

FAQ

Which has a larger context window, GPT-5 or Qwen3-9B?

GPT-5 supports 400k tokens, while Qwen3-9B supports 256k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.

Which is cheaper, GPT-5 or Qwen3-9B?

Qwen3-9B is cheaper on tracked token pricing. GPT-5 costs $1.25/1M input and $10/1M output tokens. Qwen3-9B costs $0.04/1M input and $0.20/1M output tokens. Provider discounts or batch pricing can still change the final bill.

Is GPT-5 or Qwen3-9B open source?

GPT-5 is listed under Proprietary. Qwen3-9B is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.

Which is better for vision, GPT-5 or Qwen3-9B?

GPT-5 has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.

Which is better for multimodal input, GPT-5 or Qwen3-9B?

GPT-5 has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.

Where can I run GPT-5 and Qwen3-9B?

GPT-5 is available on Replicate API, OpenRouter, OpenAI API, and Vercel AI Gateway. Qwen3-9B is available on DeepInfra. Provider coverage can affect latency, region availability, compliance posture, and fallback options.

Continue comparing

Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.