Token pricing (API) and relative costOpenAI published API pricing for GPT-6.1 Sol at $2 per million input tokens and $10 per million output tokens; the company also says Sol delivers near-Astra performance at roughly one-fifth the standard input/output token prices.
OPENAI · MODEL RELEASE TRACKER
GPT-6.1 Sol
GPT-6.1 Sol is an OpenAI model positioned as a major upgrade to GPT-6 Sol, offered via Amazon Bedrock. It is presented as delivering strong reasoning for agentic coding, computer use, and professional workflows while matching higher-tier models on specific benchmarks at lower cost per task.CURRENT SNAPSHOT3/5 DIMENSIONS WITH DATA
The dimensions that change the decision.
Not established from the available sources.
Not established from the available sources.
Reported benchmark performance (OpenAI-reported)OpenAI reported that Sol ties Astra on the DeepSWE v1.1 coding benchmark (at ~one-fifth the cost), scores 6.4 percentage points higher than GPT-6 Sol on that benchmark, beats GPT-6 Sol by ~7 points on OSWorld 2.0 and sits ~2.1 points behind Astra, outperforms Anthropic's Opus 5.5 on a GDP.pdf document benchmark at lower cost, finishes 2.2 points ahead of Opus 5.5 on AutomationBench (medium reasoning), and more than doubles GPT-6 Sol on Terminal-Bench Science.
Reported factual accuracy changeOpenAI reported that at low reasoning effort the share of responses containing a factual error fell from 11.4% (GPT-6 Sol) to 7.7% (GPT-6.1 Sol), and that across all reasoning settings Sol's error rate stayed within 1.9% of GPT-6 Astra.
Benchmarks and costAccording to OpenAI (via the AWS post), GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 at roughly one‑fifth the cost per task, and exceeds the best score from GPT-6 Sol by 6.4 percentage points while using lower reasoning effort.
Inference environmentRuns on an inference engine on Amazon Bedrock described as built for performance, security, and reliability at scale.
API access and model nameDevelopers can access the model in the API as 'gpt-6.1-sol'; an 'Ultrafast' variant for faster token generation in Codex was announced as forthcoming.
RELEASE TIMELINE
Published, source-backed release events only.
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VERIFIABLE FACTS
Every value stays attached to a source and date.
RELEASE · General availabilityDEVELOPER CLAIM
According to AWS, GPT-6.1 Sol is generally available on Amazon Bedrock.
AVAILABILITY · Inference environmentDEVELOPER CLAIM
Runs on an inference engine on Amazon Bedrock described as built for performance, security, and reliability at scale.
AVAILABILITY · API access and model nameDEVELOPER CLAIM
Developers can access the model in the API as 'gpt-6.1-sol'; an 'Ultrafast' variant for faster token generation in Codex was announced as forthcoming.
PRICING · Token pricing (API) and relative costDEVELOPER CLAIM
OpenAI published API pricing for GPT-6.1 Sol at $2 per million input tokens and $10 per million output tokens; the company also says Sol delivers near-Astra performance at roughly one-fifth the standard input/output token prices.
BENCHMARKS · Reported benchmark performance (OpenAI-reported)DEVELOPER CLAIM
OpenAI reported that Sol ties Astra on the DeepSWE v1.1 coding benchmark (at ~one-fifth the cost), scores 6.4 percentage points higher than GPT-6 Sol on that benchmark, beats GPT-6 Sol by ~7 points on OSWorld 2.0 and sits ~2.1 points behind Astra, outperforms Anthropic's Opus 5.5 on a GDP.pdf document benchmark at lower cost, finishes 2.2 points ahead of Opus 5.5 on AutomationBench (medium reasoning), and more than doubles GPT-6 Sol on Terminal-Bench Science.
CAPABILITIES · Task capabilities and improvements over GPT-6 SolDEVELOPER CLAIM
OpenAI said GPT-6.1 Sol delivers significant improvements over GPT-6 Sol on complex tasks including programming and debugging, understanding documents, and executing multi-step workflows; the company claims Sol approaches GPT-6 Astra's performance on agentic coding, computer use, and professional work.
BENCHMARKS · Reported factual accuracy changeDEVELOPER CLAIM
OpenAI reported that at low reasoning effort the share of responses containing a factual error fell from 11.4% (GPT-6 Sol) to 7.7% (GPT-6.1 Sol), and that across all reasoning settings Sol's error rate stayed within 1.9% of GPT-6 Astra.
SAFETY · Safety-related behavior and conformity to reviewersDEVELOPER CLAIM
OpenAI said GPT-6.1 Sol is more upfront about limitations and more reliable at honoring user intent and safety constraints than GPT-6 Sol in challenging evaluations (e.g., flagging broken search tools, following explicit restrictions, avoiding unauthorized outcomes); OpenAI reported observing no attempts by Sol to circumvent its automated safety reviewer.
CAPABILITIES · CapabilitiesDEVELOPER CLAIM
Described as a major upgrade to GPT-6 Sol that delivers strong performance in agentic coding, computer use, and professional workloads; positioned to bring near‑Astra intelligence to everyday workflows.
BENCHMARKS · Benchmarks and costDEVELOPER CLAIM
According to OpenAI (via the AWS post), GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 at roughly one‑fifth the cost per task, and exceeds the best score from GPT-6 Sol by 6.4 percentage points while using lower reasoning effort.
WHAT CHANGED
Stored passport versions, without reconstructed history.
RELEASE · Announcement / launch event− OpenAI showed off and released GPT-6.1 Sol at its DevDay 2026 event.
BENCHMARKS · Benchmarks and cost+ According to OpenAI (via the AWS post), GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 at roughly one‑fifth the cost per task, and exceeds the best score from GPT-6 Sol by 6.4 percentage points while using lower reasoning effort.
CAPABILITIES · Capabilities+ Described as a major upgrade to GPT-6 Sol that delivers strong performance in agentic coding, computer use, and professional workloads; positioned to bring near‑Astra intelligence to everyday workflows.
AVAILABILITY · Availability in ChatGPT Work and Codex− GPT-6.1 Sol is available to paying users (Plus, Pro, Business, Enterprise, and Edu) in ChatGPT Work and Codex; OpenAI notes the model is not yet available in regular Chat.
RELEASE · General availability+ According to AWS, GPT-6.1 Sol is generally available on Amazon Bedrock.
AVAILABILITY · Inference environment+ Runs on an inference engine on Amazon Bedrock described as built for performance, security, and reliability at scale.