Qwen3.8 Max

Qwen3.8 Max is Alibaba's flagship Qwen model, a sparse mixture-of-experts vision-language model for complex reasoning, code generation, and long-document analysis.

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input · usd / 1m tok

$2.00

output · usd / 1m tok

$6.00

context window

1.05mtokens

modalities · in → out

pricing

base api ratesusd per 1m tokens

input: $2.00
output: $6.00
cache read: $0.25
cache write · default ttl: $2.50

providers

Qwen hosts Qwen3.8 Max. Impossibl routes your request intelligently and handles failover automatically when a provider is down.

Qwen

specifications

takes text and image in, gives text outqwen/qwen3.8-max

creatorQwen
model typeText generation
context window1,048,576 tokens
maximum outputnot published
input
takes text and image in, gives text out
outputtext
tool callingnot verified
releasedaug 3, 2026
endpoint/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.

try it · your prompt, this model, live

# responses API
import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["IMPOSSIBL_API_KEY"],
    base_url="https://api.impossibl.com/v1",
)

resp = client.responses.create(
    model="qwen/qwen3.8-max",
    input="▌",
)
print(resp.output_text)

edit the prompt, then run

# responses API
import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["IMPOSSIBL_API_KEY"],
    base_url="https://api.impossibl.com/v1",
)

resp = client.responses.create(
    model="qwen/qwen3.8-max",
    input="▌",
)
print(resp.output_text)

edit the prompt, then run

benchmarks

intelligence index

40.3#15 of 90 models on the gateway

coding index71.8#18 of 60
agentic index49.6#12 of 49
omniscience3.4#30 of 86
gpqa92.7%#18 of 88
humanity’s last exam43.0%#14 of 89
terminal-bench v2.181.3%#19 of 57

GPQA92.7%
MMMU-Pro82.3%
Terminal-Bench v2.181.3%
AA-LCR78.3%
SciCode53.2%
Tau Banking51.3%
AutomationBench Partial49.2%
Humanity’s Last Exam43.0%
GDP.pdf All-pass20.2%
CritPt20.0%
Multilingual LCR19.4%
Terminal-Bench v4.018.7%

Intelligence Index40.30
Omniscience Index3.40
GDPval Elo1630.39
coding index (API)71.8
agentic index (API)49.6
intelligence index (API)40.3

view source ↗all source data and breakdowns (json) ↗

each configuration is listed separately; these evaluations describe the tested model configuration, and performance and costs can differ on impossibl. unmeasured scores are omitted and api values keep their source units. last checked 2026-09-11.

compare Qwen3.8 Max with other models

frontier labs and open weights, best-ranked firstusd / 1m tok · in / out

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openai/gpt-6-astra$10.00 / $50.00compare →
meta/muse-spark-1.3$1.25 / $4.25compare →
zai/glm-5.3$1.40 / $4.40compare →

impossibl models --all →

frequently asked questions

What is Qwen3.8 Max?

Qwen3.8 Max is Alibaba's flagship Qwen model, a sparse mixture-of-experts vision-language model for complex reasoning, code generation, and long-document analysis. It can ingest hundred-page documents, full television series, or long livestreams, and has run multi-day autonomous software engineering projects.

How much does Qwen3.8 Max cost?

Qwen3.8 Max costs $2.00 per million input tokens and $6.00 per million output tokens through the Impossibl API. Cache reads cost $0.25 per million tokens; cache writes cost $2.50 per million tokens. All rates are in USD.

view the pricing table ↑

What is the context length of Qwen3.8 Max?

Qwen3.8 Max has a 1,048,576-token context window through the Impossibl API.

What inputs and outputs does Qwen3.8 Max support?

Qwen3.8 Max accepts text and image as input. Qwen3.8 Max returns text.

How do I use Qwen3.8 Max through an API?

Qwen3.8 Max is available through the Impossibl API. Use qwen/qwen3.8-max as the model identifier with /v1/chat/completions. The quickstart explains how to create an API key and send your first request.

follow the api quickstart →

When was Qwen3.8 Max released?

Qwen released Qwen3.8 Max on August 3, 2026.

Creator release announcement ↗

this page describes Qwen3.8 Max 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. model descriptions and release dates, where available, use the creator sources linked under the answers above.

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