RankingMagistral Medium 1.2

Magistral Medium 1.2

Data updated 12 Sept 2026

6 published benchmark measures · 2 benchmark families contribute across 1 task areas. 1 capability estimates available in the full profile. See all results ↓ · Compare published benchmarks →

Model evidence summary

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A model-wide score would mix effort settings. This page summarizes published evidence; only identified configurations receive leaderboard ranks.

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The capability chart summarizes evidence across reported settings, not a runnable configuration or a leaderboard rank.

Performance profile

Capabilities

Adjusted comparison score · 0–100

Filled points are supported; hollow points are preliminary. Lines stop at unknown capabilities. Exact values and sources follow below.

Agentic2 families · 1 with independent evidence · Preliminary1.4

2 core families; 41 direct opponents across 19 labs. Needs broader benchmark and opponent support

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 11/11 scenarios unsupported. Without one publisher: No supported estimate; 15/15 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage; source sensitivity still requires inspection. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

GDPval: 15.0 observed win share
artificialanalysis.ai · Source 1
Browsecomp: 50.0 observed win share
Mistral · Source 1

Hard reasoningNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 7/7 scenarios unsupported. Without one publisher: No supported estimate; 16/16 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

CodingNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 7/7 scenarios unsupported. Without one publisher: No supported estimate; 20/20 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts improved on neutral predictions within evaluated coverage. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Human prefNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 1/1 scenarios unsupported. Without one publisher: No supported estimate; 1/1 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: cross-family and cross-publisher predictions could not be evaluated from the available comparison network. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

KnowledgeNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 4/4 scenarios unsupported. Without one publisher: No supported estimate; 5/5 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: almost no publisher-held-out comparisons remained estimable. Cross-source validity is unresolved. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

MultimodalNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 8/8 scenarios unsupported. Without one publisher: No supported estimate; 8/8 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: limited publisher-held-out coverage. Cross-source validity is unresolved. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Long contextNo comparable evidenceUnknown

0 core families; 0 direct opponents across 0 labs. No admitted core comparisons

Estimated against the same complete panel: gpt-5.6-sol claude-opus-4-8 gemini-3.1-pro . Indirect comparisons assume performance can be summarized by one strength within this capability.

Refit without one family: No supported estimate; 5/5 scenarios unsupported. Without one publisher: No supported estimate; 5/5 unsupported. Smoothing check: No supported estimate; 3/3 unsupported. These are sensitivity checks, not confidence intervals.

Audit: family and publisher holdouts underperformed neutral predictions. Treat this as an exploratory estimate. Validation audit.

Matched family win shares below describe source evidence; they are not averaged to produce the adjusted score.

Scores estimate outcomes against a shared reference panel; they are not accuracy percentages. Sparse or disconnected evidence cannot qualify an overall profile. Open a capability to inspect its evidence.

Compare 1 effort levels across 17 benchmark/harness combinations →

Reported effort · Maximum reasoning + unspecified

Settings reported in this model's published benchmark results, including results outside the aggregate. Effort names are provider-specific. These are not API defaults or equal compute budgets.

Maximum reasoning: 5 observations
Not specified: 1 observations

Mixed settings means multiple settings occur in the evidence. Best across efforts means the source selected its best reported result across settings; it does not mean Max. Unspecified settings stay unknown. This model-summary chart combines reported settings. The leaderboard keeps identified configurations separate and excludes unknown effort.

Inspect each result and its source ↓ · Download effort evidence

Compare capability profiles →

Score contributions and missing evidence

2 contributing families across 1 capabilities. Fixed reference panels do not change when the catalog expands.

Capability is fitted jointly across families. Capability estimates below describe different task areas; their weighted sum is not the Capability score.

Results without reviewed compatibility or a reference match remain in the raw evidence below. Coverage counts only contributing results.

Model information & shareable badge

Lab: Mistral
Catalog status: deprecated
Availability: Documented provider API; deprecated and still accessible until retirement
Family: Magistral
Released: 2025-09-18
Context: 128,000 tokens
License: proprietary
Model card: https://docs.mistral.ai/models/magistral-medium-1-2-25-09
Default Capability family coverage: /badge/magistral-medium-2509.svg

Benchmark scores & sources

Original results, evaluation harnesses, and evidence behind this model.

Benchmark	Bucket	Score	Harness	Evidence	Source-recorded date
BrowseComp · source release snapshot; version as labeled	Agentic	10% Reported settings & source Maximum reasoning; Mistral same-lab comparison; tau3 4trials GPT5.2low user simulator; BrowseComp context-discard setup in card. First-party chart numeric label, visually verified. Mistral Medium 3.5 model card performance charts · images/image2.png · reviewed 2026-09-06	Published configuration Effort: Maximum reasoning contributes to capability	lab self-report	Reviewed 2026-09-06
GDPval-AA	Agentic	362	Artificial Analysis GDPval-AA Effort: Not specified contributes to capability	official board	2026-09-12
tau3 Airline · source release snapshot; version as labeled	Supporting evidence	53.5% Reported settings & source Maximum reasoning; Mistral same-lab comparison; tau3 4trials GPT5.2low user simulator; BrowseComp context-discard setup in card. First-party chart numeric label, visually verified. Mistral Medium 3.5 model card performance charts · images/image2.png · reviewed 2026-09-06	Published configuration Effort: Maximum reasoning	lab self-report Supporting evidence outside the reviewed capability core	Reviewed 2026-09-06
tau3 Banking · source release snapshot; version as labeled	Supporting evidence	7.7% Reported settings & source Maximum reasoning; Mistral same-lab comparison; tau3 4trials GPT5.2low user simulator; BrowseComp context-discard setup in card. First-party chart numeric label, visually verified. Mistral Medium 3.5 model card performance charts · images/image2.png · reviewed 2026-09-06	Published configuration Effort: Maximum reasoning	lab self-report Supporting evidence outside the reviewed capability core	Reviewed 2026-09-06
tau3 Retail · source release snapshot; version as labeled	Supporting evidence	70.2% Reported settings & source Maximum reasoning; Mistral same-lab comparison; tau3 4trials GPT5.2low user simulator; BrowseComp context-discard setup in card. First-party chart numeric label, visually verified. Mistral Medium 3.5 model card performance charts · images/image2.png · reviewed 2026-09-06	Published configuration Effort: Maximum reasoning	lab self-report Supporting evidence outside the reviewed capability core	Reviewed 2026-09-06
tau3 Telecom · source release snapshot; version as labeled	Supporting evidence	60.5% Reported settings & source Maximum reasoning; Mistral same-lab comparison; tau3 4trials GPT5.2low user simulator; BrowseComp context-discard setup in card. First-party chart numeric label, visually verified. Mistral Medium 3.5 model card performance charts · images/image2.png · reviewed 2026-09-06	Published configuration Effort: Maximum reasoning	lab self-report Supporting evidence outside the reviewed capability core	Reviewed 2026-09-06
ARC-AGI-2	Hard reasoning	—	—	—	—
DeepSWE v1.1	Agentic	—	—	—	—
GPQA Diamond	Hard reasoning	—	—	—	—
Humanity's Last Exam	Hard reasoning	—	—	—	—
LiveCodeBench	Coding	—	—	—	—
LMArena Text Arena	Human pref	—	—	—	—
MMLU-Pro	Knowledge	—	—	—	—
OSWorld-Verified	Agentic	—	—	—	—
SWE-bench Pro	Agentic	—	—	—	—
SWE-bench Verified	Agentic	—	—	—	—
Terminal-Bench 2.1	Agentic	—	—	—	—