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  5. Qwen3 Coder FlashvsQwen3.5 35B A3B
Updated Feb 2026

Qwen3 Coder FlashvsQwen3.5 35B A3B

Qwen3.5 35B A3B is cheaper than Qwen3 Coder Flash at $0.25/M vs $0.3/M input tokens.

Qwen3 Coder Flash and Qwen3.5 35B A3B compared across 53 shared prompts
SpecQwen3 Coder FlashQwen3.5 35B A3B
Input price$0.3/M tokens$0.25/M tokens
Output price$1.5/M tokens$2/M tokens
Context window128K tokens262K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedSep 2025Feb 2026
SWE-bench Verified50.3%69.2%
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Qwen3 Coder Flash1,258 words
3-Month Longevity Optimization Plan Phase 1: Foundation Building (Weeks 1-4) Supplement Stack - Week 1-4 Core Foundation Supplements NAD+ Precursors: Nicotinamide Riboside (NR) 500mg, Nicotinamide Mononucleotide (NMN) 250mg - morning with breakfast Omega-3 EPA/DHA: 3g daily (1000mg each) - evening with meal Vitamin D3…
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Qwen3.5 35B A3B1,171 words
Disclaimer: I am an AI, not a doctor. This plan involves significant physiological manipulation, including fasting, intense exercise, and potent supplementation. You must consult with a qualified healthcare provider, specifically one knowledgeable in functional or integrative medicine, before starting.
Read the full answer

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Qwen3 Coder Flash639 words
Hour-by-Hour Action Plan: 48-Hour Crisis Response Hours 1-2: Immediate Crisis Assembly & Assessment Action: convene emergency crisis team (legal, medical, regulatory, communications, senior leadership) Reasoning: Establish unified command structure before information spreads.
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Qwen3.5 35B A3B1,180 words
Executive Decision: The "Safety First" Protocol My Core Philosophy: In pharmaceuticals, trust is our only currency. If we lose patient trust or regulatory standing, the $2B revenue becomes irrelevant. Hiding this data is not a business strategy; it is a liability waiting to explode.
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Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

Qwen3 Coder Flash673 words
Here are the problematic clauses and suggested modifications for the contractor: Scope Modification (Clause 1) Problem: Client can modify scope "at any time without additional compensation" Modification: "Client may modify the scope with prior written notice and 30 days' advance notice.
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Qwen3.5 35B A3B1,262 words
Disclaimer: I am an AI assistant and not an attorney. The following analysis is for informational purposes only and does not constitute legal advice. Contract laws vary significantly by jurisdiction (e.g., California, New York, UK, EU). You should consult with a qualified attorney before signing this agreement.
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Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Qwen3 Coder Flash347 words
The Modern Dating World So I went on this date last week, and the guy was really into his phone. I'm thinking, "This is great! He's not distracted by my terrible conversation skills." But then he starts scrolling through his feed while we're eating dinner. And I'm like, "What are you doing?"
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Qwen3.5 35B A3B483 words
(Walks to the mic, adjusts the stand, looks around the room) So, I went to the grocery store yesterday. You know the drill. You walk in, you see the self-checkout lanes. And you think, "Oh, this is going to be efficient. I'm going to scan my own stuff. I'm going to be my own cashier. I'm going to be the boss."
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Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Qwen3 Coder Flash387 words
1) Year-by-Year Financial Projections (FY2026–FY2030) Year Revenue EBITDA Cash Interest Taxes Capex ΔNWC FCF After Debt Service Ending Debt (TL + Mezz) FY2026 $972M $138M $10.8M (TL) + $1.8M (Mezz) = $12.6M $29.3M $29.2M $4.9M $48.3M $495M FY2027 $1,041M $159M $10.8M (TL) + $1.8M (Mezz) = $12.6M $31.8M $31.2M $5.2M…
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Qwen3.5 35B A3B579 words
LBO Underwriting: HarborTech Services (HTS) Financial Model Summary (FY2026–FY2030) Entry Assumptions (FY2025 Close): Revenue: $900m EBITDA: $120m Purchase Price: $1,440m ($120m × 12.0x) Debt: $660m (TL $480m / Mezz $180m) Equity Check: $780m (Purchase) + $28.8m (Fees) = $808.8m Debt Terms: Term Loan (TL): $480m @ 9%…
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Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

Qwen3 Coder Flash888 words
The Transistor Revolution of 1920: A Timeline of Consequences World War II: The Quantum Shift Military Advantage and Strategic Miscalculations If transistors existed in 1920, the Axis powers would have gained an immediate technological edge in communications, radar, and cryptography.
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Qwen3.5 35B A3B1,194 words
This alternate history scenario assumes that in 1920, the theoretical understanding of quantum mechanics and semiconductor physics advanced sufficiently to allow for the creation of a working point-contact transistor. This implies a "Great Leap Forward" in material science and physics during the interwar period.
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Our Verdict
Qwen3.5 35B A3B
Qwen3.5 35B A3B
Qwen3 Coder Flash
Qwen3 Coder FlashRunner-up

Not enough votes to call it. On the specs, Qwen3.5 35B A3B has the edge: newer, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Qwen3 Coder Flash
Input
$0.30
Output
$1.50
1.3× cheaper
Qwen3.5 35B A3B
Input
$0.25
1.2× cheaper
Output
$2.00

Qwen3.5 35B A3B wins input (1.2× cheaper)·Qwen3 Coder Flash wins output (1.3× cheaper)

Where to run it

8 hosts, cheapest first

Qwen3 Coder Flash1 host
HostInOutContextUptime
Alibaba Cloud$0.20 in·$0.97 out·1M·100% up
Qwen3.5 35B A3B7 hosts
HostInOutContextUptime
DDarkbloomfp4$0.08 in·$0.75 out·262k·99.9% upDDeepInfrafp8$0.14 in·$1.00 out·262k·100% upPParasailfp8$0.15 in·$1.00 out·262k·100% upAlibaba Cloud$0.16 in·$1.30 out·262k·98.3% upAAtlasCloudfp8$0.23 in·$1.80 out·262k·99.5% upSSiliconFlowfp8$0.24 in·$1.80 out·262k·70.7% up
1 more hostFewer hosts
VVenice$0.31 in·$1.25 out·256k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
43%

Qwen3 Coder Flash uses 21.6x more emoji

Qwen3 Coder Flash
Qwen3.5 35B A3B
60%Vocabulary51%
85wSentence Length15w
0.56Hedging0.39
5.6Bold6.8
5.8Lists4.8
0.22Emoji0.00
1.49Headings0.84
0.15Transitions0.14
Based on 28 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

Both are developed by Qwen but target different use cases. Qwen3 Coder Flash has a 128K token context window vs Qwen3.5 35B A3B's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

It depends on your use case. Qwen3 Coder Flash and Qwen3.5 35B A3B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

Qwen3 Coder Flash costs $0.3/M input tokens and Qwen3.5 35B A3B costs $0.25/M input tokens. Qwen3.5 35B A3B is $0.05/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Qwen3 Coder Flash and Qwen3.5 35B A3B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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Model pages

Qwen3 Coder Flash logo
Qwen3 Coder Flash59 outputs, specs and price
Qwen3.5 35B A3B logo
Qwen3.5 35B A3B53 outputs, specs and price
Rival
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