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Head-to-head comparison

o3 Pro vs Qwen3.6 35B A3B

o3 Pro (OpenAI) and Qwen3.6 35B A3B (Qwen) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 18 August 2026

As of 18 August 2026, o3 Pro holds the stronger ModelCap Index position (#54 vs #57); Qwen3.6 35B A3B is 80× cheaper per output token ($1.00/1M vs $80.00/1M); Qwen3.6 35B A3B offers the longer context window (262K vs 200K tokens); and Qwen3.6 35B A3B ships open weights.

Which should you choose?

Choose o3 Pro if…

  • you want the stronger overall ModelCap Index position — #54 against #57 (46.5 vs 43.5 points).
  • Artificial Analysis Intelligence Index is your yardstick — 33.3 against 32.1.

Choose Qwen3.6 35B A3B if…

  • API cost matters — $1.00/1M output tokens against $80.00/1M, about 80× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.14/1M against $20.00/1M.
  • you need the longer context window — 262K tokens against 200K.
  • you want to self-host: Qwen3.6 35B A3B ships open weights while o3 Pro is api only.
  • you want provider choice — 9 listed API providers against 1.
  • you want the more recently listed model — Qwen3.6 35B A3B was listed 27 April 2026, o3 Pro 10 June 2025.

o3 Pro vs Qwen3.6 35B A3B: specs, pricing and context

Specification comparison of o3 Pro and Qwen3.6 35B A3B
Fieldo3 ProOpenAIQwen3.6 35B A3BQwen
ModelCap Index position#54#57
Index score46.543.5
EvidenceMeasuredMeasured
Input price / 1M tokens$20.00$0.14
Output price / 1M tokens$80.00$1.00
Context window200K tokens262K tokens
Max output tokens100K262K
API providers listed19
Weight accessAPI onlyOpen weights
Input modalitiesText, File, ImageText, Image, Video
First listed10 June 202527 April 2026
PublisherOpenAIQwen

Evidence: 1 public benchmark observation across 1 board · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: o3 Pro vs Qwen3.6 35B A3B

Public benchmark boards where o3 Pro or Qwen3.6 35B A3B has a published result
Boardo3 ProQwen3.6 35B A3BLeads
Artificial Analysis Intelligence IndexArtificial Analysis33.3intelligence-index32.1intelligence-indexo3 Pro

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

o3 Pro vs Qwen3.6 35B A3B: common questions

Is o3 Pro better than Qwen3.6 35B A3B?

o3 Pro ranks higher on the ModelCap Index as of 18 August 2026: #54 against #57. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is o3 Pro cheaper than Qwen3.6 35B A3B?

Qwen3.6 35B A3B is cheaper on output tokens: $1.00/1M against $80.00/1M. Input tokens are $20.00/1M for o3 Pro and $0.14/1M for Qwen3.6 35B A3B. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, o3 Pro or Qwen3.6 35B A3B?

Qwen3.6 35B A3B has the larger context window: 262K tokens against 200K.

Which is better for coding, o3 Pro or Qwen3.6 35B A3B?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are o3 Pro and Qwen3.6 35B A3B open-weight models?

o3 Pro: API only. Qwen3.6 35B A3B: Open weights. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run o3 Pro and Qwen3.6 35B A3B?

ModelCap currently lists 1 API provider for o3 Pro and 9 for Qwen3.6 35B A3B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this o3 Pro vs Qwen3.6 35B A3B comparison?

Every figure comes from the sealed ModelCap dataset published 18 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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