GPT-6.1 Sol vs Ling 3.1 Flash: Specs & Benchmark Comparison

GPT-6.1 Sol is developed by OpenAI, while Ling 3.1 Flash comes from InclusionAI. Both were released in September 2026. Ling 3.1 Flash has a published size of about 560 billion parameters; OpenAI has not disclosed the parameter count of GPT-6.1 Sol.

We have 17 benchmark results for GPT-6.1 Sol and 11 benchmark results for Ling 3.1 Flash, but they overlap on a single test: HealthBench Professional, where Ling 3.1 Flash scores 65.3% against 64.2%.

GPT-6.1 Sol is available through an API at $2 per million input tokens with a 1M-token context window. We do not track a hosted API for Ling 3.1 Flash, so pricing and context cannot be compared directly.

CharacteristicGPT-6.1 SolLing 3.1 Flash
CompanyOpenAIInclusionAI
Release DateSeptember 29, 2026September 30, 2026
Parameters—560B
MultimodalYesNo
Context (input)1.1M—
Context (output)128K—
Input Price / 1M$2.00—
Output Price / 1M$10.00—
Average Score62.8%65.0%
Benchmarks
HealthBench Professional64.2%65.3%

Visual Benchmark Comparison

GPT-6.1 Sol
Ling 3.1 Flash
HealthBench Professional0.6 vs 0.7
0.6
0.7

Verdict

Both models show equal results — the choice depends on your specific use case.

Overall Performance

Both models show comparable average scores: GPT-6.1 Sol — 0.6, Ling 3.1 Flash — 0.6.

Recency

Both models were released around the same time: 9/29/2026 and 9/30/2026.

More About These Models

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Frequently Asked Questions

Which is better for coding — GPT-6.1 Sol or Ling 3.1 Flash?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — GPT-6.1 Sol or Ling 3.1 Flash?
API pricing data is available on the individual model pages.
Which has a larger context window — GPT-6.1 Sol or Ling 3.1 Flash?
Context window data is available on the individual model pages.

The GPT-6.1 Sol and Ling 3.1 Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-6.1 Sol or Ling 3.1 Flash page. See also the complete list of AI model comparisons.