Grok Build 0.1 vs Solar Pro 3
Grok Build 0.1 leads Solar Pro 3 on the Artificial Analysis Intelligence Index, 27.2 to 7.8, and Solar Pro 3 costs 3.3x less per output token ($0.60 vs $2.00 per million). Updated October 22, 2026; 2 benchmarks have a result for both.
Grok Build 0.1 or Solar Pro 3: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Grok Build 0.1 for a larger context window (256K against 131K tokens).
- Shared results
- 2
- Grok Build 0.1 only
- 1
- Solar Pro 3 only
- 8
- Like-for-like categories
- 2 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
Grok Build 0.1
Grok Build 0.1 leads, 27.2 against 7.8.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Solar Pro 3 has a AA Agentic Index result, 1.4.
Directional only
Long documents
Listed context window
Grok Build 0.1
Grok Build 0.1 takes 256K tokens against 131K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Solar Pro 3
Grok Build 0.1 $0.0020, Solar Pro 3 $0.0004 per turn.
List prices
At a glance
- Coding index
- Grok Build 0.1 not benchmarked, Solar Pro 3 not benchmarked.
- Widest category
- Coding, 35.3 points apart on average over 1 shared benchmark.
- Widest single gap
- AA Coding Index: Grok Build 0.1 51.5 against Solar Pro 3 16.2, 35.3 points apart on a 0 to 100 scale.
- Output price
- Grok Build 0.1 $2.00 against Solar Pro 3 $0.60 per million output tokens, 3.3x apart.
- Context window
- Grok Build 0.1 takes 256K tokens, Solar Pro 3 131K.
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 | Grok Build 0.1 | Bars | Solar Pro 3 | Ties |
|---|---|---|---|---|
| Coding | 1 | 0 | ||
| Intelligence | 1 | 0 | ||
| All shared boards | 2 | 0 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index10
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| AA Coding Index | 51.5 | 16.2 | Grok Build 0.1 |
| Vibe Code Bench (Vals AI) | 13.4% | Not measured | Only Grok Build 0.1 measured |
| SciCode | Not measured | 25.5% | Only Solar Pro 3 measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 7.6% | Only Solar Pro 3 measured |
| Neither model has a result on the other 39 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| AA Intelligence Index | 27.2 | 7.8 | Grok Build 0.1 |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 1.4 | Only Solar Pro 3 measured |
| τ²-Bench Telecom | Not measured | 86.3% | Only Solar Pro 3 measured |
| Neither model has a result on the other 40 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 72.4% | Only Solar Pro 3 measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 10.3% | Only Solar Pro 3 measured |
| Neither model has a result on the other 21 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| Neither model has a result on 14 boards here | |||
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| Neither model has a result on 20 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | Leader |
|---|---|---|---|
| IFBench | Not measured | 71.2% | Only Solar Pro 3 measured |
| Long context reasoning (AA-LCR) | Not measured | 32.3% | Only Solar Pro 3 measured |
| Neither model has a result on the other 46 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Grok Build 0.1 | Solar Pro 3 | 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
Solar Pro 3 costs less
Repository review
50K input + 3K output tokens
Solar Pro 3 costs less
Agent loop
200K input + 10K output tokens
Solar Pro 3 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 | SpaceXAI Grok Build 0.1 | Upstage Solar Pro 3 |
|---|---|---|
| Maker | xAI | Upstage |
| Weights | No public weights listed | No public weights listed |
| Released | May 20, 2026 | January 27, 2026 |
| Context window | 256K | 131K |
| Input $/Mtok | $1.00 | $0.15 |
| Output $/Mtok | $2.00 | $0.60 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 1 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Grok Build 0.1 better than Solar Pro 3 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Grok Build 0.1 for a larger context window (256K against 131K tokens).
Which is cheaper, Grok Build 0.1 or Solar Pro 3?
Grok Build 0.1 costs $1.00 per million input tokens and $2.00 per million output tokens; Solar Pro 3 costs $0.15 and $0.60. Cost per solved task is known for neither of them.
Which has the bigger context window, Grok Build 0.1 or Solar Pro 3?
Grok Build 0.1, with 256K tokens against 131K.
How many benchmarks is the Grok Build 0.1 vs Solar Pro 3 comparison based on?
2 benchmarks have a result for both models as of October 22, 2026. Grok Build 0.1's coding index rests on 1 independent benchmark and Solar Pro 3's on 0. Where only one model has a result, the page says so instead of naming a winner.