How much do GPT-6 Astra or GPT-6 Sol cost per month?

For an example workload of 20 million input tokens and 5 million output tokens per month: GPT-6 Astra: $450. GPT-6 Sol: $90. These are token-only estimates using the displayed rates, without caching discounts, additional tool charges or taxes. Actual bills depend on usage and endpoint pricing.

Which has a larger context window: GPT-6 Astra or GPT-6 Sol?

GPT-6 Astra: 1.1M tokens of context; maximum output 128K tokens. GPT-6 Sol: 1.1M tokens of context; maximum output 128K tokens. Context capacity and maximum output are separate limits. A larger context window allows more material in a request but does not guarantee more accurate answers.

Which is better for coding: GPT-6 Astra or GPT-6 Sol?

GPT-6 Astra: Artificial Analysis SciCode 56.5%. GPT-6 Sol: Artificial Analysis SciCode 57.6%. Compare coding results within the same evaluation, then test representative tasks from your own codebase. A missing score is not a zero, and a single benchmark does not establish the best model for every programming task.

How do Arena Elo, DesignArena, Intelligence Index and MMLU-Pro differ?

These evaluations measure different tasks and use different scales. Arena Elo and DesignArena ratings must remain separate, as must Artificial Analysis Intelligence Index and MMLU-Pro. Compare models within the same evaluation rather than combining scores. Missing results are marked Not listed, not treated as measured zeroes.

Which responds faster: GPT-6 Astra or GPT-6 Sol?

GPT-6 Astra: Artificial Analysis output speed 60 tokens/s; time to first token 287.74 seconds. GPT-6 Sol: Artificial Analysis output speed 107 tokens/s; time to first token 107.76 seconds. Output speed measures generation throughput, while time to first token measures the initial wait. Real-world latency also depends on the API provider, request size and load; missing measurements cannot establish a speed winner.

Do GPT-6 Astra or GPT-6 Sol support images, audio or video?

GPT-6 Astra: listed input formats: file, image, text; output formats: text. GPT-6 Sol: listed input formats: file, image, text; output formats: text. Input and output support are different capabilities: accepting an image does not mean a model generates images. Confirm formats and file limits for the endpoint you plan to use.

Do GPT-6 Astra or GPT-6 Sol support tool calling and structured outputs?

GPT-6 Astra: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Deterministic seed, Prompt caching. GPT-6 Sol: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Deterministic seed, Prompt caching. Only recorded capabilities are shown; an unlisted feature is not proof that it is unsupported. Availability can vary by API provider, so confirm tool calling and JSON schema support for your chosen endpoint.

Can prompt caching reduce the cost of GPT-6 Astra or GPT-6 Sol?

GPT-6 Astra: cached input price $1.00 per million tokens. GPT-6 Sol: cached input price $0.20 per million tokens. Caching may reduce charges for eligible repeated input when supported by the endpoint. A listed cached rate does not guarantee every request qualifies; cache duration, minimum token counts and any write charges depend on the provider.

Are GPT-6 Astra or GPT-6 Sol available through an API?

GPT-6 Astra: catalog status active; API identifier gpt-6-astra; listed API hosts OpenAI, Azure, OpenAI, Amazon Bedrock, Azure, OpenAI. GPT-6 Sol: catalog status active; API identifier gpt-6-sol; listed API hosts not listed. Catalog status is not a live availability check. Before integrating, verify the provider's documentation, endpoint access, rate limits, regional availability and data-handling terms.

Models, measured side by side

GPT-6 Astra vs GPT-6 Sol

Compare GPT-6 Astra, GPT-6 Sol by token pricing, context length, benchmark results, speed and tool support.

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Monthly workload

Input· million tokensOutput· million tokens

Monthly cost breakdown

InputOutput

GPT-6 Astra

$450 / mo

GPT-6 Sol

$90 / mo

Performance comparison

GPT-6 Astra

52.7

GPT-6 Sol

47.6

Overview

Overview	GPT-6 Astra	GPT-6 Sol
Provider	OpenAI	OpenAI
Released	2026-08	2026-08
Status	Active	Active
Input formats	fileimagetext	fileimagetext
Output formats	text	text

Provider

GPT-6 Astra: OpenAI
GPT-6 Sol: OpenAI

Released

GPT-6 Astra: 2026-08
GPT-6 Sol: 2026-08

Status

GPT-6 Astra: Active
GPT-6 Sol: Active

Input formats

GPT-6 Astra: fileimagetext
GPT-6 Sol: fileimagetext

Output formats

GPT-6 Astra: text
GPT-6 Sol: text

Pricing & capacity

Pricing & capacity	GPT-6 Astra	GPT-6 Sol
Input / 1M tokens	$10	$2.00
Output / 1M tokens	$50	$10
Cached input / 1M	$1.00	$0.20
Monthly cost	$450	$90
Context window	1.1M	1.1M
Maximum output	128K	128K

Input / 1M tokens

GPT-6 Astra: $10
GPT-6 Sol: $2.00

Output / 1M tokens

GPT-6 Astra: $50
GPT-6 Sol: $10

Cached input / 1M

GPT-6 Astra: $1.00
GPT-6 Sol: $0.20

Monthly cost

GPT-6 Astra: $450
GPT-6 Sol: $90

Context window

GPT-6 Astra: 1.1M
GPT-6 Sol: 1.1M

Maximum output

GPT-6 Astra: 128K
GPT-6 Sol: 128K

Benchmarks & performance

Benchmarks & performance	GPT-6 Astra	GPT-6 Sol
Arena Elo	1,288	1,266
MMLU-Pro	88.3%	84.6%
Intelligence Index	52.7	47.6
GPQA	96.1%	Not listed
Humanity’s Last Exam	54.7%	47.9%
SciCode	56.5%	57.6%
Output speed	60 tokens/s	107 tokens/s
Time to first token	287.74 s	107.76 s
DesignArena rating	1,384	1,300
DesignArena win rate	64.8%	53.2%

Arena Elo

GPT-6 Astra: 1,288
GPT-6 Sol: 1,266

MMLU-Pro

GPT-6 Astra: 88.3%
GPT-6 Sol: 84.6%

Intelligence Index

GPT-6 Astra: 52.7
GPT-6 Sol: 47.6

GPQA

GPT-6 Astra: 96.1%
GPT-6 Sol: Not listed

Humanity’s Last Exam

GPT-6 Astra: 54.7%
GPT-6 Sol: 47.9%

SciCode

GPT-6 Astra: 56.5%
GPT-6 Sol: 57.6%

Output speed

GPT-6 Astra: 60 tokens/s
GPT-6 Sol: 107 tokens/s

Time to first token

GPT-6 Astra: 287.74 s
GPT-6 Sol: 107.76 s

DesignArena rating

GPT-6 Astra: 1,384
GPT-6 Sol: 1,300

DesignArena win rate

GPT-6 Astra: 64.8%
GPT-6 Sol: 53.2%

Tools & features

Tools & features	GPT-6 Astra	GPT-6 Sol
Function calling	Supported	Supported
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Supported	Supported
Built-in web search	Not listed	Not listed
Log probabilities	Not listed	Not listed
Deterministic seed	Supported	Supported
Parallel tool calls	Not listed	Not listed
Prompt caching	Supported	Supported

Function calling

GPT-6 Astra: Supported
GPT-6 Sol: Supported

Structured outputs

GPT-6 Astra: Supported
GPT-6 Sol: Supported

JSON mode

GPT-6 Astra: Supported
GPT-6 Sol: Supported

Reasoning

GPT-6 Astra: Supported
GPT-6 Sol: Supported

Built-in web search

GPT-6 Astra: Not listed
GPT-6 Sol: Not listed

Log probabilities

GPT-6 Astra: Not listed
GPT-6 Sol: Not listed

Deterministic seed

GPT-6 Astra: Supported
GPT-6 Sol: Supported

Parallel tool calls

GPT-6 Astra: Not listed
GPT-6 Sol: Not listed

Prompt caching

GPT-6 Astra: Supported
GPT-6 Sol: Supported

API & availability

API & availability	GPT-6 Astra	GPT-6 Sol
API identifier	`gpt-6-astra`	`gpt-6-sol`
API providers	OpenAI, Azure, OpenAI, Amazon Bedrock, Azure, OpenAI	Not listed
Knowledge cutoff	Not listed	Not listed
Prices checked	Oct 8, 2026	Oct 8, 2026

API identifier

GPT-6 Astra: gpt-6-astra
GPT-6 Sol: gpt-6-sol

API providers

GPT-6 Astra: OpenAI, Azure, OpenAI, Amazon Bedrock, Azure, OpenAI
GPT-6 Sol: Not listed

Knowledge cutoff

GPT-6 Astra: Not listed
GPT-6 Sol: Not listed

Prices checked

GPT-6 Astra: Oct 8, 2026
GPT-6 Sol: Oct 8, 2026

About the models

GPT-6 Astra

OpenAI's flagship GPT-6 model for the hardest reasoning, coding and agentic work. Long-context requests (above 272K input tokens) bill at $20 input / $75 output per 1M.

Full pricing & details

GPT-6 Sol

Balanced GPT-6 model: near-flagship quality at a fifth of Astra's price. Long-context requests (above 272K input) bill at $4 input / $15 output per 1M.

Full pricing & details

Comparison FAQ

GPT-6 Astra: $10 input and $50 output per million tokens. GPT-6 Sol: $2.00 input and $10 output per million tokens. The cheaper choice depends on your input-to-output ratio; a model can have a lower input rate but a higher output rate.

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Monthly workload

Monthly cost breakdown

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About the models

GPT-6 Astra

GPT-6 Sol

Comparison FAQ

Which costs less: GPT-6 Astra or GPT-6 Sol?

How much do GPT-6 Astra or GPT-6 Sol cost per month?

Which has a larger context window: GPT-6 Astra or GPT-6 Sol?

Which is better for coding: GPT-6 Astra or GPT-6 Sol?

How do Arena Elo, DesignArena, Intelligence Index and MMLU-Pro differ?

Which responds faster: GPT-6 Astra or GPT-6 Sol?

Do GPT-6 Astra or GPT-6 Sol support images, audio or video?

Do GPT-6 Astra or GPT-6 Sol support tool calling and structured outputs?

Can prompt caching reduce the cost of GPT-6 Astra or GPT-6 Sol?

Are GPT-6 Astra or GPT-6 Sol available through an API?

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