LLM Reference

o3 vs Qwen3-Max

o3 (2025) and Qwen3-Max (2025) are frontier reasoning models from OpenAI and Alibaba. o3 ships a 200k-token context window, while Qwen3-Max ships a 262k-token context window. On SWE-bench Verified, Qwen3-Max leads by 7.1 pts. On pricing, o3 costs $2/1M input tokens; Qwen3-Max ranges from $1.20 to $3/1M input tokens by tier. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Qwen3-Max is safer overall; choose o3 when coding workflow support matters.

Decision scorecard

Local evidence first
Signalo3Qwen3-Max
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsmultimodal apps, tool-calling agents, and provider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window200k262k
Cheapest output$8/1M tokens$3.90/1M tokens
Provider routes3 tracked3 tracked
Shared benchmarks1 rowsSWE-bench Verified leader

Decision tradeoffs

Choose o3 when...
  • o3 uniquely exposes Reasoning and Code execution in local model data.
  • Local decision data tags o3 for Coding, RAG, and Agents.
Choose Qwen3-Max when...
  • Qwen3-Max holds a shared-benchmark lead on SWE-bench Verified, ahead by 7.1 points.
  • Qwen3-Max has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Qwen3-Max has the lower cheapest tracked output price at $3.90/1M tokens.
  • Local decision data tags Qwen3-Max for Coding, RAG, and Agents.

Monthly cost at traffic

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

Lower estimate Qwen3-Max

o3

$3,600

Cheapest tracked route/tier: OpenAI API

Qwen3-Max

$1,599

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $2,001. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

o3 -> Qwen3-Max
  • Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
  • Qwen3-Max is $4.10/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Reasoning and Code execution before moving production traffic.
Qwen3-Max -> o3
  • Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
  • o3 is $4.10/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • o3 adds Reasoning and Code execution in local capability data.

Specs

Specification
Released2025-04-162025-04-28
Context window200k262k
Parameters
Architecturedecoder onlydecoder only
LicenseProprietaryApache 2.0(OSI)
OpennessProprietaryOpen source
Commercial useCommercial use with conditionsCommercial use allowed
Knowledge cutoff2024-062025-12

Pricing and availability

Pricing attributeo3Qwen3-Max
Input price$2/1M tokens
0-32,001t
$1.20/1M tokens
0-128,001t
$2.40/1M tokens
128,001t+
$3/1M tokens
Output price$8/1M tokens
0-32,001t
$6/1M tokens
0-128,001t
$12/1M tokens
128,001t+
$15/1M tokens
Providers

Capabilities

Capabilityo3Qwen3-Max
VisionYesYes
MultimodalYesYes
ReasoningYesNo
Function callingYesYes
Tool useYesYes
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

Benchmarko3Qwen3-Max
SWE-bench Verified71.778.8

Deep dive

On shared benchmark coverage, SWE-bench Verified has o3 at 71.7 and Qwen3-Max at 78.8, with Qwen3-Max ahead by 7.1 points. The largest visible gap is 7.1 points on SWE-bench Verified, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.

The capability footprint differs most on reasoning mode: o3 and code execution: o3. Both models share vision, multimodal input, function calling, and tool use, 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, o3 lists $2/1M input and $8/1M output tokens on the cheapest tracked provider, while Qwen3-Max lists tiered pricing: 0-32,001t is $1.20/1M input and $6/1M output; 0-128,001t is $2.40/1M input and $12/1M output; 128,001t+ is $3/1M input and $15/1M output. A 70/30 input-output blend puts Qwen3-Max lower by about $2.08 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 3 providers versus 3, so concentration risk also matters.

Choose o3 when coding workflow support are central to the workload. Choose Qwen3-Max when long-context analysis, larger context windows, and lower cheapest-tier input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.

FAQ

Which has a larger context window, o3 or Qwen3-Max?

Qwen3-Max supports 262k tokens, while o3 supports 200k 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, o3 or Qwen3-Max?

o3 lists $2/1M input and $8/1M output tokens on the cheapest tracked provider. Qwen3-Max lists tiered pricing: 0-32,001t is $1.20/1M input and $6/1M output; 0-128,001t is $2.40/1M input and $12/1M output; 128,001t+ is $3/1M input and $15/1M output. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.

Is o3 or Qwen3-Max open source?

o3 is listed under Proprietary. Qwen3-Max 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, o3 or Qwen3-Max?

Both o3 and Qwen3-Max expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.

Which is better for multimodal input, o3 or Qwen3-Max?

Both o3 and Qwen3-Max expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.

Where can I run o3 and Qwen3-Max?

o3 is available on OpenAI API, OpenRouter, and Vercel AI Gateway. Qwen3-Max is available on OpenRouter, Vercel AI Gateway, and Novita AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.

Continue comparing

Last reviewed: 2026-06-08. Data sourced from public model cards and provider documentation.