Mistral Small 3.1 24B Instruct vs Qwen3.5-9B

Mistral Small 3.1 24B Instruct (2025) and Qwen3.5-9B (2026) are compact production models from MistralAI and Alibaba. Mistral Small 3.1 24B Instruct ships a 128k-token context window, while Qwen3.5-9B ships a 262k-token context window. On pricing, both list $0.10/1M input tokens on the cheapest tracked route. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Qwen3.5-9B is safer overall; choose Mistral Small 3.1 24B Instruct when vision-heavy evaluation matters.

Decision scorecard

Local evidence first
SignalMistral Small 3.1 24B InstructQwen3.5-9B
Best formultimodal apps and provider-routed productionmultimodal apps, tool-calling agents, and provider-routed production
Decision fitRAG, Long context, and VisionCoding, RAG, and Agents
Context window128k262k
Cheapest output$0.30/1M tokens$0.15/1M tokens
Provider routes7 tracked4 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Mistral Small 3.1 24B Instruct when...
  • Mistral Small 3.1 24B Instruct has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags Mistral Small 3.1 24B Instruct for RAG, Long context, and Vision.
Choose Qwen3.5-9B when...
  • Qwen3.5-9B has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Qwen3.5-9B has the lower cheapest tracked output price at $0.15/1M tokens.
  • Qwen3.5-9B uniquely exposes JSON / Tool use in local model data.
  • Local decision data tags Qwen3.5-9B 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 Qwen3.5-9B

Mistral Small 3.1 24B Instruct

$155

Cheapest tracked route/tier: Together AI

Qwen3.5-9B

$118

Cheapest tracked route/tier: Together AI

Estimated monthly gap: $37.50. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Mistral Small 3.1 24B Instruct -> Qwen3.5-9B
  • Provider overlap exists on Together AI, OpenRouter, and Featherless; start route-level A/B tests there.
  • Qwen3.5-9B is $0.15/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Qwen3.5-9B adds JSON / Tool use in local capability data.
Qwen3.5-9B -> Mistral Small 3.1 24B Instruct
  • Provider overlap exists on OpenRouter, Together AI, and Featherless; start route-level A/B tests there.
  • Mistral Small 3.1 24B Instruct is $0.15/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Check replacement coverage for JSON / Tool use before moving production traffic.

Specs

Specification
Released2025-12-152026-03-02
Context window128k262k
Parameters24B9B
ArchitectureDecoder OnlyDecoder Only
LicenseApache 2.0OSI-approvedApache 2.0OSI-approved
OpennessOpen sourceOpen source
WeightsUnknownUnknown
CodeUnknownUnknown
Commercial useCommercial use: permittedCommercial use: permitted
Knowledge cutoff2023-10-

Pricing and availability

Pricing attributeMistral Small 3.1 24B InstructQwen3.5-9B
Input price$0.10/1M tokens$0.10/1M tokens
Output price$0.30/1M tokens$0.15/1M tokens
Providers

Capabilities

CapabilityMistral Small 3.1 24B InstructQwen3.5-9B
VisionYesYes
MultimodalYesYes
ReasoningNoNo
JSON / Tool useNoYes
Structured outputsYesYes
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

Continue comparing

Last reviewed: 2026-09-24. Data sourced from public model cards and provider documentation.