Qwen3.8 Max API — pricing, access & subscription

Qwen3.8 Max (also written “Qwen 3.8 Max”) is Alibaba’s flagship model — a 2.4-trillion-parameter system scoring 58 on the Artificial Analysis Intelligence Index, with vision input. As of August 14, 2026 CheapestInference serves it in the Flagship Pool, next to Kimi K3, on unlimited, flat-rate time-block subscriptions from $199/mo — no per-token billing, no token caps during your reserved hours. Seats are very limited; live availability is on /pools.

Quick facts

Model	Qwen3.8 Max
Model ID	qwen3.8-max
Pool	Flagship Pool (with Kimi K3)
AA Intelligence Index	58
Context window	1M tokens
Max request size	8 MB per request
Vision	Yes — image input on the same endpoint
Per-token price elsewhere	$2.00 in / $6.00 out per 1M — reference only
Pricing	From $199/mo — reserve an 8-hour daily time block, up to full 24/7

Call Qwen3.8 Max

from openai import OpenAI

client = OpenAI(
    base_url="https://api.cheapestinference.com/v1",
    api_key="sk-..."  # your subscriber key
)

response = client.chat.completions.create(
    model="qwen3.8-max",
    messages=[{"role": "user", "content": "Refactor this function..."}],
)

curl https://api.cheapestinference.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "qwen3.8-max", "messages": [{"role": "user", "content": "Hello"}]}'

Vision works through the standard OpenAI image format: pass image_url content parts (data URIs or URLs) in your messages — no separate endpoint.

Why unlimited Qwen3.8 Max

Qwen3.8 Max launched at closed-model list prices ($2/$6 per 1M elsewhere) — Sonnet-5-class intelligence with a price to match, which is exactly the profile where a flat fee pays off. A Flagship Pool subscription serves it with no token caps through a standard OpenAI-compatible endpoint: heavy agentic runs, vision input, all at one fixed monthly price. It works in Claude Code, Cline, Roo Code, Continue, and any client that accepts a custom base URL.

One Flagship subscription covers both flagship profiles: Kimi K3 for peak agentic coding (60 on the index), and Qwen3.8 Max for breadth and vision, two index points behind. Same key, same endpoints, switch by model id.

Because seats are very limited, the pool can sell out — the pools page shows live availability per block.

Common questions

Is there an unlimited Qwen3.8 Max API? Yes — live since August 14, 2026. The CheapestInference Flagship Pool serves Qwen3.8 Max with uncapped usage for one flat monthly fee — from $199/month for a daily 8-hour block, up to full 24/7 with all three blocks. Seats are very limited.

What is the cheapest way to use Qwen3.8 Max? For heavy use, an unlimited time-block subscription: from $199/month you reserve a daily 8-hour window and use it with no token caps — at the model’s per-token list price ($2 in / $6 out per 1M), a serious agent workload passes that figure within days. For light or occasional use, per-token access via Alibaba’s API is the cheaper route.

Does Qwen3.8 Max support vision? Yes. Image input works through the standard OpenAI image_url content format on the same /v1/chat/completions endpoint — screenshots, documents, photos alongside text.

Does Qwen3.8 Max have open weights? The open-weight variant — Qwen3.8-2.4T-A95B, the open release of the Max — shipped on August 13, 2026, followed by the dense Qwen3.8-27B (Apache 2.0). The hosted qwen3.8-max API build this pool serves remains Alibaba’s own.

Is Qwen3.8 Max OpenAI-compatible? Yes — OpenAI Chat Completions at /v1/chat/completions and Anthropic Messages at /anthropic/v1/messages, both with tool calling. Point your SDK at https://api.cheapestinference.com/v1 and use model id qwen3.8-max.