API cost decision in 10 seconds

DeepSeek V3.1 Terminus vs Qwen3 Next 80B A3B Instruct

Pick Qwen3 Next 80B A3B Instruct when budget and context both matter.

Page updated: 2026-05-26T15:08:08Z Data confirmed: 2026-05-30T18:07:59Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Qwen3 Next 80B A3B Instruct when budget and context both matter.

On the standard 1M input plus 500K output workload, Qwen3 Next 80B A3B Instruct is estimated at $0.64 vs $0.74 for DeepSeek V3.1 Terminus, saving $0.1 (14.1% lower).

Cost-first pickQwen3 Next 80B A3B Instruct

Context-first pickQwen3 Next 80B A3B Instruct

Sample savings$0.114.1%

10x traffic gap$1.05

Qwen3 Next 80B A3B Instruct is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $1.05. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cost winner changes by workload shape: input-heavy / RAG favors Qwen3 Next 80B A3B Instruct, balanced workload favors Qwen3 Next 80B A3B Instruct, and output-heavy chatbot favors DeepSeek V3.1 Terminus.

Workload shape	Token mix	Better pick	DeepSeek V3.1 Terminus	Qwen3 Next 80B A3B Instruct
Input-heavy / RAG	5M input + 500K output	Qwen3 Next 80B A3B Instruct	$1.83	$1
Balanced workload	1M input + 1M output	Qwen3 Next 80B A3B Instruct	$1.22	$1.19
Output-heavy chatbot	1M input + 5M output	DeepSeek V3.1 Terminus	$5.02	$5.59

Cheaper input Qwen3 Next 80B A3B Instruct $0.27 vs $0.09 / 1M

Qwen3 Next 80B A3B Instruct is $0.18 cheaper per 1M input tokens (66.7% lower; 3x difference).

Cheaper output DeepSeek V3.1 Terminus $0.95 vs $1.1 / 1M

DeepSeek V3.1 Terminus is $0.15 cheaper per 1M output tokens (13.6% lower; 1.16x difference).

Larger context Qwen3 Next 80B A3B Instruct 163.84K vs 262.14K

Qwen3 Next 80B A3B Instruct has 98.3K more context (1.6x larger).

Sample workload Qwen3 Next 80B A3B Instruct $0.74 vs $0.64

Qwen3 Next 80B A3B Instruct is $0.1 cheaper on the standard workload (14.1% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

DeepSeek V3.1 Terminus Calculating… Estimated API cost

Qwen3 Next 80B A3B Instruct Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Qwen3 Next 80B A3B Instruct has the lower input price; DeepSeek V3.1 Terminus has the lower output price; Qwen3 Next 80B A3B Instruct offers the larger context window. For the 1M input plus 500K output sample, Qwen3 Next 80B A3B Instruct is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.74 for DeepSeek V3.1 Terminus and $0.64 for Qwen3 Next 80B A3B Instruct.

Best Fit

Choose DeepSeek V3.1 Terminus when you care most about lower output-token price.

Choose Qwen3 Next 80B A3B Instruct when you care most about lower input-token price, and larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Qwen3 Next 80B A3B Instruct is estimated at $0.64 vs $0.74 for DeepSeek V3.1 Terminus, saving $0.1 (14.1% lower).
Qwen3 Next 80B A3B Instruct is $0.1 cheaper on the standard workload (14.1% lower).
Qwen3 Next 80B A3B Instruct is $0.18 cheaper per 1M input tokens (66.7% lower; 3x difference).
DeepSeek V3.1 Terminus is $0.15 cheaper per 1M output tokens (13.6% lower; 1.16x difference).
Qwen3 Next 80B A3B Instruct has 98.3K more context (1.6x larger).

Head-to-Head Specs

Feature	DeepSeek V3.1 Terminus (DeepSeek)	Qwen3 Next 80B A3B Instruct (Qwen)
Input Price prompt tokens per 1M	$0.27	$0.09
Completion Price per 1M tokens	$0.95	$1.1
Sample Workload Cost 1M input + 500K output	$0.74	$0.64
Context Window	163.84K	262.14K
Release Date	2025-09-22	2025-09-11
Popularity	#82	#89

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Qwen3 Next 80B A3B Instruct	On the standard 1M input plus 500K output workload, Qwen3 Next 80B A3B Instruct is estimated at $0.64 vs $0.74 for DeepSeek V3.1 Terminus, saving $0.1 (14.1% lower).
High-volume input processing	Qwen3 Next 80B A3B Instruct	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	DeepSeek V3.1 Terminus	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Qwen3 Next 80B A3B Instruct	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

DeepSeek V4 Flash (free) can replace DeepSeek V3.1 Terminus when lower sample workload cost matters most: $0.
DeepSeek V4 Flash can replace DeepSeek V3.1 Terminus when lower sample workload cost matters most: $0.2.
R1 Distill Qwen 32B can replace DeepSeek V3.1 Terminus when lower sample workload cost matters most: $0.43.
DeepSeek V3.2 can replace DeepSeek V3.1 Terminus when lower sample workload cost matters most: $0.44.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.
DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
MiMo-V2.5 offers 1.05M context with $0.28 sample workload cost.

Popular competitors

Hy3 preview · Tencent · #1
DeepSeek V4 Flash · DeepSeek · #2
MiMo-V2.5 · Xiaomi · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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DeepSeek catalog

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Qwen catalog

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DeepSeek V3.1 Terminus

DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...

Qwen3 Next 80B A3B Instruct

Qwen3-Next-80B-A3B-Instruct is an instruction-tuned chat model in the Qwen3-Next series optimized for fast, stable responses without “thinking” traces. It targets complex tasks across reasoning, code generation, knowledge QA, and multilingual...