GPT-6.1 Sol — Specifications
Compiled by Mustafa Ihsan from the vendor’s published documentation · Last updated
| Sviluppatore | OpenAI |
|---|---|
| Tipo | Ragionamento / agenziale |
| Modalità | Testo, visione |
| Parametri | Non divulgato |
| Licenza | Proprietaria |
| Pesi aperti | No |
| Pubblicato | 2026-09 |
| Prezzo dell’input | $2.00 /1M |
| Prezzo dell’output | $10.00 /1M |
| Provider API | API OpenAI |
Benchmark
| OpenAI-reported | DeepSWE v1.1 matches GPT-6 Astra (6.4 pts above GPT-6 Sol); AutomationBench 1.0.6 +2.2 pts vs Claude Opus 5.5 (medium); Terminal-Bench Science 0.1 $5.47/task at max effort |
|---|
What is GPT-6.1 Sol?
GPT-6.1 Sol is OpenAI’s upgrade to GPT-6 Sol, launched at DevDay on 29 September 2026. Secondo OpenAI, it nearly matches GPT-6 Astra on agentic coding, computer use and professional work at one-fifth of Astra’s token prices, matches Astra on DeepSWE v1.1, and cuts the share of answers with a factual error from 11.4% to 7.7% versus GPT-6 Sol at low effort on hard prompts.
API pricing is $2 per million input tokens and $10 output, with cached input at $0.10. In ChatGPT it is available to Plus, Pro, Business, Enterprise and Edu users in ChatGPT Work and Codex (not yet in Chat), and to developers as gpt-6.1-sol. OpenAI released it in place of GPT-6.1 Astra, which it held back after internal safety tests.
GPT-6.1 Sol pricing: API cost per 1M tokens
| Input (per ogni milione di token) | $2.00 |
|---|---|
| Output (per ogni milione di token) | $10.00 |
| Rapporto output/input | 5× |
| Combinato (4:1 in:out) | $3.60 per 1 milione di token |
What GPT-6.1 Sol costs per month
Spesa mensile reale con un mix input-to-output 4:1 — il rapporto effettivamente prodotto da un tipico carico di lavoro basato su chat o RAG.
| Carico di lavoro | Token/mese | Costo/mese |
|---|---|---|
| Progetto secondario | 1 milione in ingresso / 0,25 milioni in uscita | $4.50 |
| Piccolo team | 20 milioni in ingresso / 5 milioni in uscita | $90 |
| Produzione | 200 milioni in ingresso / 50 milioni in uscita | $900 |
Calcola i tuoi numeri personalizzati nel Calcolatore dei costi delle API per l'IA.
Cheaper alternatives to GPT-6.1 Sol
| Modello | Costo combinato ($/1 milione) | Risparmi |
|---|---|---|
| Mistral 7B aperta | $0.0220 | 99% più economico |
| Llama 3.1 8B aperta | $0.0220 | 99% più economico |
| Mistral NeMo 12B aperta | $0.0240 | 99% più economico |
Domande frequenti
How much does GPT-6.1 Sol cost per 1M tokens?
GPT-6.1 Sol costs $2.00 per 1M input tokens and $10.00 per 1M output tokens. At a typical 4:1 input-to-output mix that blends to about $3.60 per 1M tokens.
How much does GPT-6.1 Sol cost per month?
A small-team workload of 20M input and 5M output tokens a month costs about $90 on GPT-6.1 Sol. A side project (1M in / 0.25M out) costs roughly $4.50.
What is a cheaper alternative to GPT-6.1 Sol?
Mistral 7B is the strongest cheaper option in our database at $0.0220 per 1M blended — about 99% less than GPT-6.1 Sol. It is also open-weight, so self-hosting is an option.
Can I run GPT-6.1 Sol locally?
No. GPT-6.1 Sol is a closed, API-only model — the weights are not released, so it cannot be self-hosted.
Why does GPT-6.1 Sol charge more for output than input?
Output tokens are generated one at a time and cannot be batched the way a prompt can, so they cost the provider more to serve. GPT-6.1 Sol charges 5× more for output, which is why prompt-heavy workloads are far cheaper to run than generation-heavy ones.
I prezzi indicati sono le tariffe ufficiali pubblicate per l'API principale del modello e vengono aggiornati man mano che i fornitori li modificano. Sconti per volumi elevati, elaborazione batch e input memorizzati nella cache non sono inclusi. Confronta tutti i modelli fianco a fianco nel database dei modelli AI o il Classifica LLM.