Mistral Small 4
- Family
- Mistral Small
- Released
- 2026-03-16
- Context
- 256k
- Parameters
- 119B (6.5B active)
- Architecture
- Mixture of Experts
- Knowledge cutoff
- 2025-06
- Specialization
- general
- Openness
- Open source
- License
- Apache 2.0OSI-approvedCommercial use: permitted
- Weights
- Available
- Code
- Unknown
- Training
- Pretrained
Cheapest of 3 routes · Mistral AI Studio
About
Mistral Small 4 is a hybrid 119B MoE model unifying instruct, reasoning, and coding capabilities. Features configurable reasoning effort per request and native function calling with JSON output support.
Top use-case fit: coding, agents, and build tasks
Agents
Q/$ AProvider price ladder
Compare all 3Compare API pricing across 3 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| Mistral AI Studio | $0.100 | $0.300 | Serverless |
| OpenRouter | $0.150 | $0.600 | Serverless |
| NVIDIA NIM | - | - | ServerlessPartial |
Available via routers & gateways(11)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Martian
RouterAI-powered LLM router that analyzes each prompt in real-time to select the optimal model, targeting 20–97% cost reduction while maintaining quality; San Francisco startup reportedly nearing $1.3B valuation.
Neutrino AI
RouterCommercial LLM router that dynamically routes each query to the best-suited model with load balancing and fallback handling, charging 3% of underlying AI spend.
Capabilities
Benchmark peer barsfor Agents
Benchmark scores(4)
Migration checks
No linked migration route is available for this model yet.
Rankings & picks(2)
Compare Mistral Small 4 with other models
- Mistral Small 4 vs MiniCPM-V 4.626
- Mistral Small 4 vs Gemini 2.5 Flash14
- Mistral Small 4 vs Llama 4 Scout 17B-16E Instruct14
- Mistral Small 4 vs Llama 3 Taiwan 70B Instruct10
- Mistral Small 4 vs ELYZA Japanese Llama 2 7B8
- Mistral Small 4 vs Together AI - Llama 3 8B Lite7
- Mistral Small 4 vs Llama Guard 3 1B7
- Mistral Small 4 vs Claude 3.5 Haiku6
Comparison and alternatives
Browse all comparisons →Cheapest of 3 routes · Mistral AI Studio