LLM Reference

o3 vs Qwen3.6-35B-A3B

o3 (2025) and Qwen3.6-35B-A3B (2026) compare a standalone API model against a coding-specialized model. o3 ships a 200k-token context window, while Qwen3.6-35B-A3B ships a 262k-token context window. On SWE-bench Verified, Qwen3.6-35B-A3B leads by 1.7 pts. On pricing, Qwen3.6-35B-A3B costs $0.15/1M input tokens versus $2/1M for the alternative. This page treats the result as workflow and deployment fit, not a universal model winner.

Treat this as a product-type comparison: o3 is standalone API model, while Qwen3.6-35B-A3B is coding-specialized model. Choose based on workflow fit before reading any benchmark or price row as decisive.

Decision scorecard

Local evidence first
Signalo3Qwen3.6-35B-A3B
Product typeStandalone API modelCoding-specialized model
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentscustom coding agents, code generation, and tool loops
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window200k262k
Cheapest output$8/1M tokens$1/1M tokens
Provider routes3 tracked2 tracked
Shared benchmarks5 sharedSWE-bench Verified leader

Decision tradeoffs

Choose o3 when...
  • o3 holds a shared-benchmark lead on Google-Proof Q&A, ahead by 1.7 points.
  • o3 has broader tracked provider coverage for fallback and route flexibility.
  • o3 uniquely exposes Reasoning, Structured outputs, and Code execution in local model data.
  • Local decision data tags o3 for Coding, RAG, and Agents.
Choose Qwen3.6-35B-A3B when...
  • Qwen3.6-35B-A3B holds a shared-benchmark lead on SWE-bench Verified, ahead by 1.7 points.
  • Qwen3.6-35B-A3B has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Qwen3.6-35B-A3B has the lower cheapest tracked output price at $1/1M tokens.
  • Local decision data tags Qwen3.6-35B-A3B 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 Qwen3.6-35B-A3B

o3

$3,600

Cheapest tracked route/tier: OpenAI API

Qwen3.6-35B-A3B

$370

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $3,230. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

o3 -> Qwen3.6-35B-A3B
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Qwen3.6-35B-A3B is $7/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Reasoning, Structured outputs, and Code execution before moving production traffic.
Qwen3.6-35B-A3B -> o3
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • o3 is $7/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • o3 adds Reasoning, Structured outputs, and Code execution in local capability data.

Specs

Specification
Released2025-04-162026-04-16
Context window200k262k
Parameters—35B
ArchitectureDecoder OnlyMixture of Experts
LicenseProprietaryApache 2.0OSI-approved
OpennessProprietaryOpen source
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2024-06-

Pricing and availability

Pricing attributeo3Qwen3.6-35B-A3B
Input price$2/1M tokens$0.15/1M tokens
Output price$8/1M tokens$1/1M tokens
Providers
OpenAI APIOpenRouterVercel AI Gateway
OpenRouterNovita AI

Capabilities

Capabilityo3Qwen3.6-35B-A3B
VisionYesYes
MultimodalYesYes
ReasoningYesNo
JSON / Tool useYesYes
Structured outputsYesNo
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

Benchmarko3Qwen3.6-35B-A3B
SWE-bench Verified71.773.4
Google-Proof Q&A87.786.0
LiveCodeBench85.580.4
MMMU Pro76.475.3
MathVista86.886.4

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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.