GPT-6 Astra vs Hunyuan 3

rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.

the models at a glance: base rates, context window and modalities
specificationGPT-6 Astra

openai/gpt-6-astra

Hunyuan 3

tencent/hy3

input · usd / 1m tok$10.00$0.132
output · usd / 1m tok$50.00$0.528
context window1.05mtokens262.14ktokens
modalities · in → out

takes text and image in, gives text out

takes text in, gives text out

pricing

base api rates by model
base api rates · usd per 1m tokensGPT-6 Astra

openai/gpt-6-astra

Hunyuan 3

tencent/hy3

input$10.00over 272k · $20.00$0.132
output$50.00over 272k · $75.00$0.528
cache read$1.00over 272k · $2.00$0.033
cache write · default ttl$12.50over 272k · $25.00not published

brackets are by input tokens per request: a request over a threshold is billed at that bracket's rates for all of its tokens. cache creation can have a separate charge. the estimate below prices one workload at these rates on every model.

specifications

published specifications by model
as publishedGPT-6 Astra

openai/gpt-6-astra

Hunyuan 3

tencent/hy3

creatorOpenAITencent
model typeText generationText generation
context window1,050,000tokens262,144tokens
input

takes text and image in, gives text out

takes text in, gives text out

outputtexttext
tool callingnot verifiednot verified
releasedsep 3, 2026jul 6, 2026
endpoint/v1/chat/completions/v1/chat/completions

unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.

benchmarks

benchmark scores by model, primary tested configuration
primary configurationGPT-6 Astra

openai/gpt-6-astra

Hunyuan 3

tencent/hy3

intelligence index · gateway rank52.7#4 of 11225.3#61 of 112
coding index76.9#4 of 6658.8#35 of 66
agentic index51.0#7 of 5424.1#31 of 54
omnisciencenot measured-18.5#69 of 89
gpqanot measured89.7%#28 of 82
humanity’s last examnot measured33.5%#42 of 92
aa-lcrnot measured79.0%
scicodenot measured48.6%
tau bankingnot measured22.9%
automationbench partialnot measured18.4%
gdp.pdf all-passnot measured11.2%
critptnot measured4.9%

GPT-6 Astra source ↗Hunyuan 3 source ↗

each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-10-21.

estimate your cost

one token workload, priced on every model at the published rates, in usd. change the numbers to match yours.

token workload

total input, including cached tokens

include billable reasoning tokens

the same token usage in each request

a subset of total input, never additional tokens

GPT-6 Astra

openai/gpt-6-astra

estimated usage cost

$35.00

1,000 requests × (1,000 uncached input × $10.00 + 500 output × $50.00) / 1,000,000 = $35.00

base rates: up to 272,000 input tokens per request, inclusive.

Hunyuan 3

tencent/hy3

estimated usage cost

$0.396

1,000 requests × (1,000 uncached input × $0.132 + 500 output × $0.528) / 1,000,000 = $0.396

base rates; no context pricing tiers are published.

estimates use published impossibl api usage rates. configured billing adjustments, funding fees, taxes, and custom workspace rates are excluded and may change the final amount.

image and audio usage, cache creation, and additional tool charges are excluded. reasoning tokens count as billable output, even when they are not visible in the response.

summary

GPT-6 Astra and Hunyuan 3 are available through the Impossibl API. they share the /v1/chat/completions endpoint; the model identifier selects the model for a request.

GPT-6 Astra is created by OpenAI. It has a 1,050,000-token context window. Base API pricing (USD): $10.00 per million input tokens; $50.00 per million output tokens. Above 272,000 input tokens per request, context-tier rates apply to the whole request.

Hunyuan 3 is created by Tencent. It has a 262,144-token context window. Base API pricing (USD): $0.132 per million input tokens; $0.528 per million output tokens.

GPT-6 Astra →Hunyuan 3 →

this page compares GPT-6 Astra vs Hunyuan 3 as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.

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