LLM Reference

Gemini 3 Pro vs Magistral Small 2506

Gemini 3 Pro (2025) and Magistral Small 2506 (2025) are frontier reasoning models from Google DeepMind and MistralAI. Gemini 3 Pro ships a 1m-token context window, while Magistral Small 2506 ships a 128k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.

Gemini 3 Pro fits 8x more tokens; pick it for long-context work and Magistral Small 2506 for tighter calls.

Decision scorecard

Local evidence first
SignalGemini 3 ProMagistral Small 2506
Best formultimodal apps, tool-calling agents, and long-context analysisreasoning-heavy apps
Decision fitCoding, RAG, and AgentsLong context
Context window1m128k
Cheapest output$5/1M tokens-
Provider routes2 tracked1 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Gemini 3 Pro when...
  • Gemini 3 Pro has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Gemini 3 Pro has broader tracked provider coverage for fallback and route flexibility.
  • Gemini 3 Pro uniquely exposes Vision, Multimodal, and JSON / Tool use in local model data.
  • Local decision data tags Gemini 3 Pro for Coding, RAG, and Agents.
Choose Magistral Small 2506 when...
  • Magistral Small 2506 uniquely exposes Reasoning in local model data.
  • Local decision data tags Magistral Small 2506 for Long context.

Monthly cost at traffic

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

Gemini 3 Pro

$2,250

Cheapest tracked route/tier: GCP Vertex AI

Magistral Small 2506

Unavailable

No complete token price in local provider data

Cost delta unavailable until both models have sourced input and output token prices.

Switch friction

Gemini 3 Pro -> Magistral Small 2506
  • No overlapping tracked provider route is sourced for Gemini 3 Pro and Magistral Small 2506; plan for SDK, billing, or endpoint changes.
  • Check replacement coverage for Vision, Multimodal, and JSON / Tool use before moving production traffic.
  • Magistral Small 2506 adds Reasoning in local capability data.
Magistral Small 2506 -> Gemini 3 Pro
  • No overlapping tracked provider route is sourced for Magistral Small 2506 and Gemini 3 Pro; plan for SDK, billing, or endpoint changes.
  • Check replacement coverage for Reasoning before moving production traffic.
  • Gemini 3 Pro adds Vision, Multimodal, and JSON / Tool use in local capability data.

Specs

Specification
Released2025-12-112025-06-10
Context window1m128k
Parameters—24B
ArchitectureDecoder OnlyDecoder Only
LicenseProprietaryApache 2.0OSI-approved
OpennessProprietaryOpen source
WeightsNot releasedUnknown
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2025-012025-06

Pricing and availability

Pricing attributeGemini 3 ProMagistral Small 2506
Input price$1.25/1M tokens-
Output price$5/1M tokens-
Providers
Replicate APIGCP Vertex AI
NVIDIA NIM

Capabilities

CapabilityGemini 3 ProMagistral Small 2506
VisionYesNo
MultimodalYesNo
ReasoningNoYes
JSON / Tool useYesNo
Structured outputsNoNo
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

Continue comparing

Model pages
Labs and families
Related comparisons

Popular comparisons for Gemini 3 Pro

Popular comparisons for Magistral Small 2506

Last reviewed: 2026-09-21. Data sourced from public model cards and provider documentation.