API cost decision in 10 seconds

Qwen3.6 35B A3B vs Cogito v2.1 671B

Pick Qwen3.6 35B A3B when budget and context both matter.

Pricing data updated: 2026-05-26T11:08:00Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Qwen3.6 35B A3B when budget and context both matter.

On the standard 1M input plus 500K output workload, Qwen3.6 35B A3B is estimated at $0.65 vs $1.88 for Cogito v2.1 671B, saving $1.23 (65.3% lower).

Cost-first pickQwen3.6 35B A3B

Context-first pickQwen3.6 35B A3B

Sample savings$1.2365.3%

10x traffic gap$12.25

Qwen3.6 35B A3B is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $12.25. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Qwen3.6 35B A3B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Qwen3.6 35B A3B	Cogito v2.1 671B
Input-heavy / RAG	5M input + 500K output	Qwen3.6 35B A3B	$1.25	$6.88
Balanced workload	1M input + 1M output	Qwen3.6 35B A3B	$1.15	$2.5
Output-heavy chatbot	1M input + 5M output	Qwen3.6 35B A3B	$5.15	$7.5

Cheaper input Qwen3.6 35B A3B $0.15 vs $1.25 / 1M

Qwen3.6 35B A3B is $1.1 cheaper per 1M input tokens (88% lower; 8.33x difference).

Cheaper output Qwen3.6 35B A3B $1 vs $1.25 / 1M

Qwen3.6 35B A3B is $0.25 cheaper per 1M output tokens (20% lower; 1.25x difference).

Larger context Qwen3.6 35B A3B 262.14K vs 128K

Qwen3.6 35B A3B has 134.14K more context (2.05x larger).

Sample workload Qwen3.6 35B A3B $0.65 vs $1.88

Qwen3.6 35B A3B is $1.23 cheaper on the standard workload (65.3% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Qwen3.6 35B A3B Calculating… Estimated API cost

Cogito v2.1 671B 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

Qwen3.6 35B A3B has the lower input price; Qwen3.6 35B A3B has the lower output price; Qwen3.6 35B A3B offers the larger context window. For the 1M input plus 500K output sample, Qwen3.6 35B A3B is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.65 for Qwen3.6 35B A3B and $1.88 for Cogito v2.1 671B.

Best Fit

Choose Qwen3.6 35B A3B when you care most about lower input-token price, lower output-token price, and larger context window.

Choose Cogito v2.1 671B when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes

On the standard 1M input plus 500K output workload, Qwen3.6 35B A3B is estimated at $0.65 vs $1.88 for Cogito v2.1 671B, saving $1.23 (65.3% lower).
Qwen3.6 35B A3B is $1.23 cheaper on the standard workload (65.3% lower).
Qwen3.6 35B A3B is $1.1 cheaper per 1M input tokens (88% lower; 8.33x difference).
Qwen3.6 35B A3B is $0.25 cheaper per 1M output tokens (20% lower; 1.25x difference).
Qwen3.6 35B A3B has 134.14K more context (2.05x larger).

Head-to-Head Specs

Feature	Qwen3.6 35B A3B (Qwen)	Cogito v2.1 671B (Deep Cogito)
Input Price prompt tokens per 1M	$0.15	$1.25
Completion Price per 1M tokens	$1	$1.25
Sample Workload Cost 1M input + 500K output	$0.65	$1.88
Context Window	262.14K	128K
Release Date	2026-04-27	2025-11-13

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Qwen3.6 35B A3B	On the standard 1M input plus 500K output workload, Qwen3.6 35B A3B is estimated at $0.65 vs $1.88 for Cogito v2.1 671B, saving $1.23 (65.3% lower).
High-volume input processing	Qwen3.6 35B A3B	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Qwen3.6 35B A3B	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Qwen3.6 35B A3B	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.6 35B A3B when lower sample workload cost matters most: $0.
Qwen3 Coder 480B A35B (free) can replace Qwen3.6 35B A3B when lower sample workload cost matters most: $0.
Qwen2.5 7B Instruct can replace Qwen3.6 35B A3B when lower sample workload cost matters most: $0.09.
Qwen3.5-9B can replace Qwen3.6 35B A3B when lower sample workload cost matters most: $0.11.

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.
Gemini 3.1 Flash Lite offers 1.05M context with $1 sample workload cost.
DeepSeek V4 Pro offers 1.05M context with $0.87 sample workload cost.

Popular competitors

No popular competitor is currently available.

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

Qwen catalog

Review all tracked Qwen models before deciding whether this matchup is the right shortlist.

Open Qwen models

Deep Cogito catalog

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Open Deep Cogito models

Qwen3.6 35B A3B

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Cogito v2.1 671B

Cogito v2.1 671B MoE represents one of the strongest open models globally, matching performance of frontier closed and open models. This model is trained using self play with reinforcement learning...