LLM Reference

Gemini 2.5 Flash vs Qwen3.5-35B-A3B

Gemini 2.5 Flash (2025) and Qwen3.5-35B-A3B (2026) are frontier reasoning models from Google DeepMind and Alibaba. Gemini 2.5 Flash ships a 1m-token context window, while Qwen3.5-35B-A3B ships a 262k-token context window. On MMLU PRO, Gemini 2.5 Flash leads by 3.1 pts. On pricing, Qwen3.5-35B-A3B costs $0.14/1M input tokens versus $0.30/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Qwen3.5-35B-A3B is ~116% cheaper at $0.14/1M; pay for Gemini 2.5 Flash only for coding workflow support.

Decision scorecard

Local evidence first
SignalGemini 2.5 FlashQwen3.5-35B-A3B
Best formultimodal apps, tool-calling agents, and long-context analysisreasoning-heavy apps, tool-calling agents, and provider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window1m262k
Cheapest output$2.50/1M tokens$1/1M tokens
Provider routes6 tracked2 tracked
Shared benchmarksMMLU PRO leader3 shared

Decision tradeoffs

Choose Gemini 2.5 Flash when...
  • Gemini 2.5 Flash holds a shared-benchmark lead on MMLU PRO, ahead by 3.1 points.
  • Gemini 2.5 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Gemini 2.5 Flash has broader tracked provider coverage for fallback and route flexibility.
  • Gemini 2.5 Flash uniquely exposes Vision, Multimodal, and Code execution in local model data.
  • Local decision data tags Gemini 2.5 Flash for Coding, RAG, and Agents.
Choose Qwen3.5-35B-A3B when...
  • Qwen3.5-35B-A3B holds a shared-benchmark lead on Google-Proof Q&A, ahead by 1.7 points.
  • Qwen3.5-35B-A3B has the lower cheapest tracked output price at $1/1M tokens.
  • Qwen3.5-35B-A3B uniquely exposes Reasoning in local model data.
  • Local decision data tags Qwen3.5-35B-A3B for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Qwen3.5-35B-A3B

Gemini 2.5 Flash

$865

Cheapest tracked route/tier: Google AI Studio

Qwen3.5-35B-A3B

$361

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $504. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Gemini 2.5 Flash -> Qwen3.5-35B-A3B
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Qwen3.5-35B-A3B is $1.50/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Code execution before moving production traffic.
  • Qwen3.5-35B-A3B adds Reasoning in local capability data.
Qwen3.5-35B-A3B -> Gemini 2.5 Flash
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Gemini 2.5 Flash is $1.50/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Check replacement coverage for Reasoning before moving production traffic.
  • Gemini 2.5 Flash adds Vision, Multimodal, and Code execution in local capability data.

Specs

Specification
Released2025-06-172026-02-24
Context window1m262k
Parameters—35B
ArchitectureDecoder OnlyMixture of Experts
LicenseProprietaryApache 2.0OSI-approved
OpennessProprietaryOpen source
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2025-01-

Pricing and availability

Pricing attributeGemini 2.5 FlashQwen3.5-35B-A3B
Input price$0.30/1M tokens$0.14/1M tokens
Output price$2.50/1M tokens$1/1M tokens
Providers
Google AI StudioGCP Vertex AIReplicate APIOpenRouterVercel AI GatewayInceptron
OpenRouterNovita AI

Capabilities

CapabilityGemini 2.5 FlashQwen3.5-35B-A3B
VisionYesNo
MultimodalYesNo
ReasoningNoYes
JSON / Tool useYesYes
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkGemini 2.5 FlashQwen3.5-35B-A3B
MMLU PRO88.485.3
Google-Proof Q&A82.884.5
LiveCodeBench76.274.6

Continue comparing

Model pages
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.