o1-pro vs Sonar
o1-pro leads Sonar on the Artificial Analysis Intelligence Index, 12.4 to 7.7, and Sonar costs 600.0x less per output token ($1.00 vs $600.00 per million). Updated October 21, 2026; 1 benchmarks have a result for both.
o1-pro or Sonar: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick o1-pro for a larger context window (200K against 127K tokens).
- Shared results
- 1
- o1-pro only
- 1
- Sonar only
- 4
- Like-for-like categories
- 1 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
o1-pro
o1-pro leads, 12.4 against 7.7.
Same board, both measured
Long documents
Listed context window
o1-pro
o1-pro takes 200K tokens against 127K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Sonar
o1-pro $0.450, Sonar $0.0015 per turn.
List prices
At a glance
- Coding index
- o1-pro not benchmarked, Sonar not benchmarked.
- Widest category
- Intelligence, 4.7 points apart on average over 1 shared benchmark.
- Widest single gap
- AA Intelligence Index: o1-pro 12.4 against Sonar 7.7, 4.7 points apart on a 0 to 100 scale.
- Output price
- o1-pro $600.00 against Sonar $1.00 per million output tokens, 600.0x apart.
- Context window
- o1-pro takes 200K tokens, Sonar 127K.
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.
| Category | o1-pro | Bars | Sonar | Ties |
|---|---|---|---|---|
| Intelligence | 1 | 0 | ||
| All shared boards | 1 | 0 |
CodingDirectional onlySix of these boards feed the Vibe Coding Index1 board, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| LiveCodeBench (Artificial Analysis run) | Not measured | 29.5% | Only Sonar measured |
| Neither model has a result on the other 38 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| AA Intelligence Index | 12.4 | 7.7 | o1-pro |
| Neither model has a result on the other 1 board here | |||
Agentic workNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| Neither model has a result on 41 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 47.1% | Only Sonar measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 4.9% | Only Sonar measured |
| ARC-AGI | 23.3% | Not measured | Only o1-pro measured |
| Neither model has a result on the other 19 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| Neither model has a result on 13 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| MMLU Pro (Artificial Analysis run) | Not measured | 68.9% | Only Sonar measured |
| Neither model has a result on the other 17 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| Neither model has a result on 46 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | o1-pro | Sonar | Leader |
|---|---|---|---|
| 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
Sonar costs less
Repository review
50K input + 3K output tokens
Sonar costs less
Agent loop
200K input + 10K output tokens
Sonar 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.
| Specification | OpenAI o1-pro | Perplexity Sonar |
|---|---|---|
| Maker | OpenAI | Perplexity |
| Weights | No public weights listed | No public weights listed |
| Released | March 19, 2025 | January 27, 2025 |
| Context window | 200K | 127K |
| Input $/Mtok | $150.00 | $1.00 |
| Output $/Mtok | $600.00 | $1.00 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is o1-pro better than Sonar for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick o1-pro for a larger context window (200K against 127K tokens).
Which is cheaper, o1-pro or Sonar?
o1-pro costs $150.00 per million input tokens and $600.00 per million output tokens; Sonar costs $1.00 and $1.00. Cost per solved task is known for neither of them.
Which has the bigger context window, o1-pro or Sonar?
o1-pro, with 200K tokens against 127K.
How many benchmarks is the o1-pro vs Sonar 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 Sonar's on 0. Where only one model has a result, the page says so instead of naming a winner.