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o1-pro vs Qwen3.5-9B

Updated October 21, 2026. 1 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

o1-proOpenAI
Coding
No data
Overall
12.4
Output $/M
$600.00
0
Qwen3.5-9BQwen
Coding
No data
Overall
13.3
Output $/M
$0.15
1
vs boards won of 1 shared

Decision reading

Neither model has a coding score yet, so the two cannot be ranked on coding.

o1-pro has the edge where the benchmark that matters is AA Intelligence Index, where it leads.

Shared results
1
o1-pro only
1
Qwen3.5-9B only
14
Like-for-like categories
1 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
o1-pro not benchmarked, Qwen3.5-9B not benchmarked.
Widest category
Intelligence, 0.9 points apart on average over 1 shared benchmark.
Widest single gap
AA Intelligence Index: o1-pro 12.4 against Qwen3.5-9B 13.3, 0.9 points apart on a 0 to 100 scale.
Output price
o1-pro $600.00 against Qwen3.5-9B $0.15 per million output tokens, 4000.0x apart.
Context window
o1-pro takes 200K tokens, Qwen3.5-9B 262K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
Categoryo1-proBarsQwen3.5-9BTies
Intelligence01
All shared boards01
CodingDirectional onlySix of these boards feed the Vibe Coding Index4 boards, none shared
Coding benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
AA Coding IndexNot measured23.5Only Qwen3.5-9B measured
SciCodeNot measured29.5%Only Qwen3.5-9B measured
Terminal-Bench Hard (Artificial Analysis run)Not measured24.2%Only Qwen3.5-9B measured
Terminal-BenchNot measured9.2%Only Qwen3.5-9B measured
Neither model has a result on the other 34 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
AA Intelligence Index12.413.3Qwen3.5-9B
Epoch Capabilities IndexNot measured139.3Only Qwen3.5-9B measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Agentic work benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
τ²-Bench TelecomNot measured86.8%Only Qwen3.5-9B measured
Neither model has a result on the other 38 boards here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
Reasoning benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
GPQA Diamond (Artificial Analysis run)Not measured80.6%Only Qwen3.5-9B measured
Humanity's Last Exam (Artificial Analysis run)Not measured14.9%Only Qwen3.5-9B measured
GPQA Diamond (Epoch AI run)Not measured79.0%Only Qwen3.5-9B measured
ARC-AGI23.3%Not measuredOnly o1-pro measured
Neither model has a result on the other 17 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Math benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
OTIS Mock AIMENot measured61.7%Only Qwen3.5-9B measured
Neither model has a result on the other 12 boards here
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Knowledge benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
Neither model has a result on 17 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
Neither model has a result on 9 boards here
GeneralDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
General benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
IFBenchNot measured66.7%Only Qwen3.5-9B measured
Long context reasoning (AA-LCR)Not measured70.0%Only Qwen3.5-9B measured
DTBenchNot measured71.2%Only Qwen3.5-9B measured
LMCANot measured24.5%Only Qwen3.5-9B measured
Neither model has a result on the other 42 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o1-pro and Qwen3.5-9B
Benchmarko1-proQwen3.5-9BLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

o1-pro$0.450Fits in one request
Qwen3.5-9B$0.0002Fits in one request

Qwen3.5-9B costs less

Repository review

50K input + 3K output tokens

o1-pro$9.30Fits in one request
Qwen3.5-9B$0.0054Fits in one request

Qwen3.5-9B costs less

Agent loop

200K input + 10K output tokens

o1-pro$36.00Exceeds the context window
Qwen3.5-9B$0.021Fits in one request

Qwen3.5-9B costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of o1-pro and Qwen3.5-9B
SpecificationOpenAI o1-proQwen3.5-9B
MakerOpenAIQwen
WeightsNo public weights listedOpen weights
ReleasedMarch 19, 2025March 10, 2026
Context window200K262K
Input $/Mtok$150.00$0.10
Output $/Mtok$600.00$0.15
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is o1-pro better than Qwen3.5-9B for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. o1-pro has the edge where the benchmark that matters is AA Intelligence Index, where it leads.

Which is cheaper, o1-pro or Qwen3.5-9B?

o1-pro costs $150.00 per million input tokens and $600.00 per million output tokens; Qwen3.5-9B costs $0.10 and $0.15. Cost per solved task is known for neither of them.

Which has the bigger context window, o1-pro or Qwen3.5-9B?

Qwen3.5-9B, with 262K tokens against 200K.

How many benchmarks is the o1-pro vs Qwen3.5-9B comparison based on?

1 benchmarks have a result for both models as of October 21, 2026. o1-pro's coding index rests on 0 independent benchmarks and Qwen3.5-9B's on 0. Where only one model has a result, the page says so instead of naming a winner.

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