VerdictPal · editorial desk · updated 16 Oct 2026VerdictPal

Compare · Two models, head-to-head

Pick two models. See the diff.

Composite scores, benchmark ranks, capability grids, and pricing per million tokens. All sourced from the same data that powers the model atlas.

Tools Models

GPT-6.1 Sol vs GPT-6 Astra

Model A

Model B

MODEL A

GPT-6.1 Sol

OpenAI · GPT-6

Composite 0Intel 01 rows1 sources

OpenAI's 29 Sep 2026 Sol line. API list $2 / $10 per 1M tokens on short context, 1.05M context, 128K output, knowledge cutoff 30 Apr 2026. Cache reads are 5% of input. No AA or Vals ledger row on this page.

MODEL B

GPT-6 Astra

OpenAI · GPT-6

Composite 75Intel 756 rows1 sources

OpenAI's 3 Sep 2026 flagship. API list $10 / $50 per 1M tokens, 1.05M context, 128K output, knowledge cutoff 30 Apr 2026. ChatGPT ships it as GPT-6 Pro on eligible plans.

GPT-6.1 Sol2stats won

Tied2stats

GPT-6 Astra2stats won

Spec showdown

Capacity, price, freshness.

GPT-6.1 SolvsGPT-6 Astra

GPT-6 Astra leads on composite score (75 vs 0), with deeper benchmark coverage across more families. GPT-6.1 Sol is significantly cheaper at $2.0/1M input vs $10/1M input.

Composite score
GPT-6.1 Sol0GPT-6 Astra75Winner on this row
Benchmark mix
GPT-6.1 Sol0GPT-6 Astra75Winner on this row
Context window
GPT-6.1 Sol1MGPT-6 Astra1M
Max output
GPT-6.1 Sol128KGPT-6 Astra128K
Input price / 1M (lower wins)
GPT-6.1 Sol$2.0Winner on this rowGPT-6 Astra$10
Output speed (AA default API)
GPT-6.1 Sol66 t/sWinner on this rowGPT-6 Astra64 t/s

Composite score

Benchmark mix

Context window

Max output

128K

Input price / 1M (lower wins)

$2.0

$10

Output speed (AA default API)

66 t/s

64 t/s

Capability grid

What each model can do.

Modalities

GPT-6.1 SolGPT-6 Astra

Text●●

Image●●

Audio——

Video——

Code●●

Tool use●●

Reasoning●●

Access

GPT-6.1 SolGPT-6 Astra

API●●

Consumer app●●

Open weights——

Managed cloud●●

On-device——

Family profile

Top score per benchmark family.

No shared benchmark families between these two models.

Benchmark ranks

Every shared benchmark, side by side.

Performance

AA output speed#93/195 · #97/195

66 t/s

64 t/s

Dossier facts

Dates, sources, fineprint.

GPT-6.1 SolGPT-6 Astra

ProviderOpenAIOpenAI

FamilyGPT-6GPT-6

Release date2026-09-292026-09-03

Knowledge cutoff2026-04-302026-04-30

Context window1M1M

Max output128K128K

Input price /1M$2.0$10

Output price /1M$10$50

Statusflagshipflagship

Composite score075

Intelligence score075

Intel sourcenonecomposite

Benchmark rows16

Source count11

Freshnessfreshfresh

Pricing checked2026-09-292026-09-18

Ecosystem

Which tools wrap each model.

GPT-6.1 Sol

chatgpt

GPT-6 Astra

chatgpt

Verdict

Which model to actually pick.

GPT-6 Astra leads on composite score (75 vs 0), with deeper benchmark coverage across more families. GPT-6.1 Sol is significantly cheaper at $2.0/1M input vs $10/1M input.

Open GPT-6.1 Sol's dossier Open GPT-6 Astra's dossier

Questions this comparison answers

Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.

Should you use GPT-6.1 Sol or GPT-6 Astra?

GPT-6 Astra leads on composite score (75 vs 0), with deeper benchmark coverage across more families. GPT-6.1 Sol is significantly cheaper at $2.0/1M input vs $10/1M input.

Is GPT-6.1 Sol or GPT-6 Astra cheaper?

GPT-6.1 Sol: $2.0 / $10. GPT-6 Astra: $10 / $50.

How do the GPT-6.1 Sol and GPT-6 Astra context windows compare?

GPT-6.1 Sol: 1M. GPT-6 Astra: 1M.