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Head-to-head comparison

o3 Pro vs Qwen3 235B A22B

o3 Pro (OpenAI) and Qwen3 235B A22B (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 (#53 vs #64); Qwen3 235B A22B is 44× cheaper per output token ($1.82/1M vs $80.00/1M); o3 Pro offers the longer context window (200K vs 131K tokens); and Qwen3 235B A22B ships open weights.

Which should you choose?

Choose o3 Pro if…

  • you want the stronger overall ModelCap Index position — #53 against #64 (46.5 vs 40.0 points).
  • you need the longer context window — 200K tokens against 131K.
  • you want the more recently listed model — o3 Pro was listed 10 June 2025, Qwen3 235B A22B 28 April 2025.

Choose Qwen3 235B A22B if…

  • API cost matters — $1.82/1M output tokens against $80.00/1M, about 44× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.455/1M against $20.00/1M.
  • you want to self-host: Qwen3 235B A22B ships open weights while o3 Pro is api only.

o3 Pro vs Qwen3 235B A22B: specs, pricing and context

Specification comparison of o3 Pro and Qwen3 235B A22B
Fieldo3 ProOpenAIQwen3 235B A22BQwen
ModelCap Index position#53#64
Index score46.540.0
EvidenceMeasuredMeasured
Input price / 1M tokens$20.00$0.455
Output price / 1M tokens$80.00$1.82
Context window200K tokens131K tokens
Max output tokens100K8K
API providers listed11
Weight accessAPI onlyOpen weights
Input modalitiesText, File, ImageText
First listed10 June 202528 April 2025
PublisherOpenAIQwen

Evidence: 1 public benchmark observation across 1 board · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: o3 Pro vs Qwen3 235B A22B

Public benchmark boards where o3 Pro or Qwen3 235B A22B has a published result
Boardo3 ProQwen3 235B A22BLeads
Arena codingArena (LMArena)—14451438–1453No thinkingOnly one result
Artificial Analysis Intelligence IndexArtificial Analysis33.3intelligence-index—Only one result

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 235B A22B: common questions

Is o3 Pro better than Qwen3 235B A22B?

o3 Pro ranks higher on the ModelCap Index as of 18 August 2026: #53 against #64. 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 235B A22B?

Qwen3 235B A22B is cheaper on output tokens: $1.82/1M against $80.00/1M. Input tokens are $20.00/1M for o3 Pro and $0.455/1M for Qwen3 235B A22B. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, o3 Pro or Qwen3 235B A22B?

o3 Pro has the larger context window: 200K tokens against 131K.

Which is better for coding, o3 Pro or Qwen3 235B A22B?

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 235B A22B open-weight models?

o3 Pro: API only. Qwen3 235B A22B: 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 235B A22B?

ModelCap currently lists 1 API provider for o3 Pro and 1 for Qwen3 235B A22B, 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 235B A22B 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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