Noometry

Model comparison

GPT-6.1 Sol vs Solar Pro 3

GPT-6.1 Sol has enough public results to be ranked (#6); Solar Pro 3 does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

GPT-6.1 Sol OpenAI

65.6

Rank #6 Confirmed

Solar Pro 3 Upstage

33.9

Unranked Sparse

Summary

  • They share 2 benchmarks with published results for both. GPT-6.1 Sol scores higher in 2 categories and Solar Pro 3 in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6.1 Sol leads 81.9 to 22.4.
  • The biggest single-benchmark swing is CritPt: 31.7% for GPT-6.1 Sol and 0% for Solar Pro 3.
  • Solar Pro 3 is cheaper at $0.25 / $0.25 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
  • GPT-6.1 Sol accepts more context: 1.05M tokens versus 131K.

Side by side

GPT-6.1 SolSolar Pro 3
ProviderOpenAIUpstage
Noometry Index65.633.9
Released2026-09-292026-01
WeightsProprietaryProprietary
Context window1.05M131K
Max output128K8K
Input $ / M tokens$2$0.25
Output $ / M tokens$10$0.25
Results tracked342

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Category by category

Coding GPT-6.1 Sol leads

GPT-6.1 Sol: 63.2 (#8), Solar Pro 3: 34.8

BenchmarkGPT-6.1 SolSolar Pro 3
SciCode55.8%24.7%
DeepSWE75.2%—
FrontierCode50.2%—
LMArena WebDev1755—
LMArena Coding1487—

Agentic & Tool Use Not comparable

GPT-6.1 Sol: 39.6 (#26), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
APEX-Agents60%—
GDP.pdf32%—

Reasoning GPT-6.1 Sol leads

GPT-6.1 Sol: 81.9 (#2), Solar Pro 3: 22.4

BenchmarkGPT-6.1 SolSolar Pro 3
CritPt31.7%0%
ARC-AGI-294.2%—
NYT Connections (extended)95.5%—
ARC-AGI-198.5%—
Chess Puzzles61%—
EBR-Bench54.3%—
LMArena Hard Prompts1466—
Mystery Game Puzzles80%—
Epoch Capabilities Index166.09—

Math Not comparable

GPT-6.1 Sol: 93.7 (#1), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
FrontierMath (Tiers 1-3)93.7%—
FrontierMath Tier 4100%—
OTIS Mock AIME 2024-2025100%—
ProofBench99%—
LMArena Math1464—

Knowledge Not comparable

GPT-6.1 Sol: 71.8 (#4), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
GPQA Diamond95.4%—
SimpleQA Verified73.9%—
LMArena Expert1502—

Multimodal Not comparable

GPT-6.1 Sol: 52.7 (#5), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
LMArena Vision1288—
Furniture Assembly80%—

Multilingual Not comparable

GPT-6.1 Sol: 54.3 (#46), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
LMArena Non-English1438—
LMArena Chinese1477—
LMArena Russian1455—

Instruction Following Not comparable

GPT-6.1 Sol: 77.0 (#29), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
LMArena Instruction Following1468—

Long Context Not comparable

GPT-6.1 Sol: 44.9 (#54), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
LMArena Longer Query1465—

Writing & Preference Not comparable

GPT-6.1 Sol: 63.6 (#63), Solar Pro 3: —

BenchmarkGPT-6.1 SolSolar Pro 3
LMArena Text1447—
LMArena Creative Writing1432—
LMArena Multi-Turn1449—

Frequently asked questions

Is GPT-6.1 Sol better than Solar Pro 3?

GPT-6.1 Sol has enough public results to be ranked (#6); Solar Pro 3 does not yet, so treat this comparison as directional.

Which is cheaper, GPT-6.1 Sol or Solar Pro 3?

Solar Pro 3 is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

Is GPT-6.1 Sol or Solar Pro 3 better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 34.8 in the Noometry coding category.

Which has the bigger context window?

GPT-6.1 Sol does, with 1.05M tokens against 131K.

How many benchmarks do GPT-6.1 Sol and Solar Pro 3 share?

2 benchmarks have published results for both models. GPT-6.1 Sol has 34 scored results on Noometry and Solar Pro 3 has 2.

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