AI Launch Profile
Mistral Small 3.1
Mistral AI released Mistral Small 3.1, an Apache 2.0 multimodal and multilingual model with improved text performance and 128K context.
At a glance
Launch Snapshot
- Company
- Mistral AI
- Launch date
- March 17, 2025
- Launch type
- Open-Source Release
- Category
- AI Open-Weight Models
- Audience
- Developers, Enterprises, Researchers
- Pricing
- Mistral released Small 3.1 under Apache 2.0 in March 2025. Its current model card marks the hosted version mistral-small-2503 retired on November 30, 2025 and directs new integrations to Mistral Small 4. Open-weight licensing and self-hosting are separate from hosted endpoint availability; this is not a current API offer for Small 3.1.
- Free plan
- Not publicly confirmed
- API
- No
- Open weights/source
- Yes
Launch Context
Use these links to move from this record into the broader Launch Intelligence database.
Verification & Sources
- Evidence state
- Recheck due
- Source links
- 3
- Freshness
- Needs recheck: checked June 8, 2026
- Last updated
- June 11, 2026
What this evidence state means
- Definition
- The claim was previously checked, but its review window expired or a material change may have invalidated it.
- Required provenance
- The prior evidence and check date are retained, together with the expiry or change signal that triggered recheck.
- Owner
- Kingy freshness queue owner and assigned editorial reviewer
- Freshness rule
- This is already outside its freshness rule. It must not be presented as current until reviewed against current evidence.
- Disputes and corrections
- Use “Suggest a correction” on the record. Kingy editorial reviews the cited evidence, records material corrections, and changes or removes the state when it is not supported.
Key source checks
Suggest a correction
Kingy Launch Score
7.0 / 10 · Solid
One earned credibility score, computed from cited evidence — not a placeholder. How the Kingy Launch Score works
Why this score
- Source & verification 7.0/10 — The Mistral announcement plus the model card documentation — two first-party sources. mistral.ai
- Product evidence 8.0/10 — An Apache 2.0 multimodal, multilingual model with 128K context, available for download and via API and cloud platforms. docs.mistral.ai
- Significance & novelty 6.0/10 — The record frames it as a strong fit for teams that care about deployability, latency, and open licensing — capable small models mattering in production. mistral.ai
- Traction signals not scored — insufficient sourced evidence
- Offer clarity 6.5/10 — Apache 2.0 availability for download, with API and cloud-platform access through Mistral and partners. mistral.ai
Evidence checked 2026-07-11
Creator Coverage Next Steps
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Kingy AI Take
Mistral released Small 3.1 under Apache 2.0 in March 2025. Its current model card marks the hosted version mistral-small-2503 retired on November 30, 2025 and directs new integrations to Mistral Small 4. Open-weight licensing and self-hosting are separate from hosted endpoint availability; this is not a current API offer for Small 3.1. Compare any replacement on your own workload; this update did not run a model or verify another provider’s availability.
Who it is for
Developers and enterprises seeking a capable small open model for assistants, function calling, image understanding, and lower-latency workflows.
Traction notes
Strong fit for teams that care about deployability, latency, and open licensing.
Source list
Sources
Related Kingy Links
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