Approaches GPT-6 Astra quality at one fifth of the price.
Back to models
Near-flagship quality Million-token context Ultrafast mode
OpenAI
GPT-6.1 Sol
FeaturedNear-Astra performance at $2/$1013% offInputImageTextOutputText
API formatOpenAI
Near-Astra performance at a lower cost for complex coding, computer use, and professional work.
gpt-6.1-solInput price$1.7333$2.00per million tokens
Output price$8.6667$10.00per million tokens
Cache read$0.0867$0.10per million tokens
Context window922K tokensMaximum context per request
Max output128K
BillingPer token
HealthNo dataNo performance samples in the last hour
Model details
Capabilities, benchmarks, and typical use
GPT-6.1 Sol delivers near-Astra performance at a lower cost for complex coding, computer use, and professional work. It accepts text and image inputs and returns text, with a 1,050,000-token context window, a 922,000-token maximum input, and 128,000 maximum output tokens; audio and video are not supported. Reasoning effort supports low, medium (default), high, xhigh, and max, and does not support none or minimal. Use the Responses API for tool calling; Chat Completions is supported without tool calling. Ultrafast mode is available with service_tier set to ultrafast. Standard pricing is $2.00 per 1M input tokens, $0.10 per 1M cached input tokens, $2.50 per 1M cache-write tokens, and $10.00 per 1M output tokens. Cached input is priced at 5% of the uncached rate and cache writes at 1.25x. Requests with more than 272K input tokens are charged 2x input and cache rates and 1.5x output for the full request. Fast mode is 2x Standard, Batch and Flex are 50% of Standard, Ultrafast is 6x Standard, and regional processing adds a 10% premium where available.
1,050,000-token context window with up to 922,000 input and 128,000 output tokens.
Offers an ultrafast service tier priced at 6x Standard for latency-critical work.