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AnthropicMistral AILLM matchup

Claude Opus 5.5vs.Mistral Large 3

Which one is better?

Claude Opus 5.5 performs better than Mistral Large 3, but costs 8 times (input) and 13.3 times (output) as much.

Opus 5.5 ahead
IntelligenceOverall index, 100 points = average
126.1

Claude Opus 5.5

Rank 1

38.8

Mistral Large 3

Rank 92

Opus 5.5 faster
SpeedTokens per second
106

Claude Opus 5.5

78

Mistral Large 3

Mistral Large 3 cheaper
Price$ per 1M tokens
$8

Claude Opus 5.5

$0.75

Mistral Large 3

Opus 5.5 more popular
Popularity0 to 100
68

Claude Opus 5.5

Rank 8 of 785

32

Mistral Large 3

Rank 476 of 785

Choose Claude Opus 5.5 for

MathematicsCodingKnowledgeMultimodalHealthGeneralReasoningLegalFinanceAgents

Choose Mistral Large 3 for

No clear advantage

Where is the difference?

Strengths at a glance

Opus 5.5Mistral Large 3Median of all ranked models

7512517525CodingOpus 5.5ReasoningOpus 5.5MathematicsOpus 5.5KnowledgeOpus 5.5AgentsOpus 5.5GeneralOpus 5.5MultimodalOpus 5.5FinanceOpus 5.5LegalOpus 5.5HealthOpus 5.5
CodingOpus 5.5 ahead
Opus 5.5129.9Rank 1
Mistral Large 338.3Rank 104
Median of ranked models84.1

95 % range: Opus 5.5 121.2 to 138.7, Mistral Large 3 29.0 to 47.6.

AreaOpus 5.5Mistral Large 3

The same values and verdicts as the bars below. In the close-up the net starts at 25 points, just below the weaker model's lowest value; the reference group average is 100.

Opus 5.5 is ahead in 10 of 10 areas, Mistral Large 3 in none.

Opus 5.5 ahead: 10

Areas in the overall index
MathematicsOpus 5.5 +99131.8 to 32.9
CodingOpus 5.5 +92129.9 to 38.3
KnowledgeOpus 5.5 +88131.4 to 43.7
MultimodalOpus 5.5 +83123.1 to 40.0
GeneralOpus 5.5 +82125.1 to 42.8
ReasoningOpus 5.5 +81122.5 to 41.3
AgentsOpus 5.5 +75117.2 to 41.7
Specialist fields
HealthOpus 5.5 +83122.1 to 39.3
LegalOpus 5.5 +77121.5 to 44.5
FinanceOpus 5.5 +76121.4 to 45.7

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Show 4 more areas that do not count toward the overall index
Cybersecurityonly Opus 5.5 has a score
Searchonly Opus 5.5 has a score
Productivityonly Opus 5.5 has a score
Educationonly Opus 5.5 has a score

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Which model for which task?

Everyday tasks, translated from the area values above. Each row names the values it rests on.

Writing and debugging codeOpus 5.5Coding 129.9 to 38.3
Maths and data analysisOpus 5.5Mathematics 131.8 to 32.9, Reasoning 122.5 to 41.3
Facts and researchOpus 5.5Knowledge 131.4 to 43.7, Search without a score for Mistral Large 3
Agents and workflowsOpus 5.5Agents 117.2 to 41.7
Fast chat repliesOpus 5.5106 to 78 tokens per second
Security analysisopenCybersecurity without a score for Mistral Large 3
Many requests on a small budgetMistral Large 3$8 to $0.75 per 1M tokens
Finance, legal and medical textsOpus 5.5Finance 121.4 to 45.7, Legal 121.5 to 44.5, Health 122.1 to 39.3
Images, screenshots and PDFsOpus 5.5Multimodal 123.1 to 40.0

See for yourself: same task, one attempt

The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.

Pelican on a bicycle

Prompt

Generate an SVG of a pelican riding a bicycle

Task origin: Simon Willison

Claude Opus 5.5

Claude Opus 5.5: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 33 s · $0.07

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
anthropic/claude-opus-5.5
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
3,536 tokens
Cost of the attempt
$0.0708
Response time
33.2 s
API model reported in response
anthropic/claude-opus-5.5
Pinned endpoint
Anthropic | anthropic/claude-opus-5.5-20260921
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating

Visually reviewed. This individual test does not establish overall model quality.

Mistral Large 3

Mistral Large 3: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 14 s · $0.0022

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
mistralai/mistral-large-2512
Reasoning setting
not specified
Token limit including reasoning
8,192 tokens
Output tokens
1,451 tokens
Cost of the attempt
$0.0022
Response time
14.2 s
API model reported in response
mistralai/mistral-large-2512
Pinned endpoint
Mistral | mistralai/mistral-large-2512
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating
Reasoning (model default)
no reasoning mode Source

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (1)

  • Sep 7, 2026API request failedReasoning setting: not specified
SVG short test

SVG short test

One SVG task with the same fixed settings for every model, without hidden thinking.

Prompt

Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.

Claude Opus 5.5

Unavailable in this round

Mistral Large 3

API request failed. The model was not evaluated.

Claude Opus 5.5 and Mistral Large 3 in the overall index

Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.

Overall index (Gradually Meta-Score v4)

20 of 92 models

5 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.

Claude Opus 5.5max126.1
Gemini 4 Carbonhigh125.8
Claude Fable 5.1max123.8
Claude Sonnet 5.5max122.8
Gemini 4 Argonhigh122.3
GPT-6 Astramax121.3
GPT-6.1 Solmax119.2
Muse Wonder Fullmax118.3
Claude Opus 5max117.2
Muse Wondermax113.4
Kimi K3.1 Promax112.9
Claude Fable 5max112.5
GPT-6 Solmax110.5
GPT-5.6 Solmax108.7
Muse Spark 1.3max107.4
Gemini 3.7 Flashhigh107.1
DeepSeek V4.1 Flash 1017max106.6
Gemini 3.8 Flashhigh106.5
GPT-6.1 Terramax105.3
Mistral Large 3none38.8

Popularity compared

How often the models are searched for, used and mentioned, on a scale from 0 to 100.

Claude Opus 5.5 is more popular than Mistral Large 3: 68 to 32 out of 100.

Over time

Weekly values from October 18, 2026 to November 7, 2026

Claude Opus 5.5Mistral Large 3

All data side by side

The better value is bold. For the overall index only when the gap is clear.

MetricClaude Opus 5.5Mistral Large 3
Intelligence
Overall indexpoints, 100 = reference group average, higher is better126.138.8
RankRank 1 of 92Rank 92 of 92
Price per 1M tokens
Inputwhat you send$4$0.50
Outputwhat the model writes$20$1.50
Cost per task (own tests)average of 1 original-protocol task both models passed (SVG short test not included)$0.071$0.002
Speed
Tokens per second10678
Popularity
Popularitysearch, usage and mentions, 0 to 10068Rank 8 of 78532Rank 476 of 785
Technical
Context windowhow much text the model reads at once1 M tokens≈ 1,500 A4 pages262,144 tokens≈ 390 A4 pages
Knowledge cutoffJune 2026n/a
ReleasedSep 22, 2026Dec 2, 2025
AvailabilityActiveActive
Open weightsnoyes

Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis

Is there a better choice?

Cheaper than Mistral Large 3DeepSeek V4.1 Flash 1017

Overall index 106.6, rank 17$0.15 input and $0.60 output per 1M tokens

Opus 5.5 vs. DeepSeek V4.1 Flash 1017

Shared benchmarks

Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.

A: Claude Opus 5.5B: Mistral Large 3

LMArena Code Arena WebDevOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,810Mistral Large 3: 1,233LMArenaAs of 10/28/2026
LMArena Text, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,509Mistral Large 3: 1,414LMArenaAs of 10/28/2026
LMArena Vision, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,293Mistral Large 3: 1,199LMArenaAs of 10/19/2026
LMArena Code Arena WebDevHTML development · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,753Mistral Large 3: 1,241LMArenaAs of 10/28/2026
LMArena Text, Style ControlBusiness, management and finance · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,495Mistral Large 3: 1,410LMArenaAs of 10/28/2026
LMArena Vision, Style ControlCreative writing with images · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,287Mistral Large 3: 1,197LMArenaAs of 10/19/2026
LMArena Code Arena WebDevImage to WebDev · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,753Mistral Large 3: 1,361LMArenaAs of 10/19/2026
LMArena Text, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,574Mistral Large 3: 1,432LMArenaAs of 10/28/2026
LMArena Vision, Style ControlDiagram understanding · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,330Mistral Large 3: 1,233LMArenaAs of 10/19/2026
LMArena Code Arena WebDevWeb development · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,810Mistral Large 3: 1,233LMArenaAs of 10/28/2026
Show 27 more benchmarks
LMArena Text, Style ControlCoding · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,551Mistral Large 3: 1,471LMArenaAs of 10/28/2026
LMArena Vision, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,284Mistral Large 3: 1,209LMArenaAs of 10/19/2026
LMArena Text, Style ControlCreative writing · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,520Mistral Large 3: 1,375LMArenaAs of 10/28/2026
LMArena Vision, Style ControlHomework · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,351Mistral Large 3: 1,206LMArenaAs of 10/19/2026
LMArena Text, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,516Mistral Large 3: 1,427LMArenaAs of 10/28/2026
LMArena Vision, Style ControlOptical character recognition · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,306Mistral Large 3: 1,214LMArenaAs of 10/19/2026
LMArena Text, Style ControlEntertainment, sports and media · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,501Mistral Large 3: 1,373LMArenaAs of 10/28/2026
LMArena Text, Style ControlExcluding ties · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,530Mistral Large 3: 1,402LMArenaAs of 10/28/2026
LMArena Text, Style ControlExpert prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,538Mistral Large 3: 1,428LMArenaAs of 10/28/2026
LMArena Text, Style ControlFrench prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,495Mistral Large 3: 1,432LMArenaAs of 10/28/2026
LMArena Text, Style ControlGerman prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,492Mistral Large 3: 1,411LMArenaAs of 10/28/2026
LMArena Text, Style ControlHard prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,535Mistral Large 3: 1,433LMArenaAs of 10/28/2026
LMArena Text, Style ControlHard prompts, English · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,538Mistral Large 3: 1,440LMArenaAs of 10/28/2026
LMArena Text, Style ControlInstruction following · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,522Mistral Large 3: 1,403LMArenaAs of 10/28/2026
LMArena Text, Style ControlJapanese prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,535Mistral Large 3: 1,379LMArenaAs of 10/28/2026
LMArena Text, Style ControlLegal and government · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,500Mistral Large 3: 1,422LMArenaAs of 10/28/2026
LMArena Text, Style ControlLife, physical and social science · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,515Mistral Large 3: 1,429LMArenaAs of 10/28/2026
LMArena Text, Style ControlLonger queries · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,525Mistral Large 3: 1,418LMArenaAs of 10/28/2026
LMArena Text, Style ControlMath · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,512Mistral Large 3: 1,401LMArenaAs of 10/28/2026
LMArena Text, Style ControlMathematical professions · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,519Mistral Large 3: 1,414LMArenaAs of 10/28/2026
LMArena Text, Style ControlMedicine and healthcare · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,512Mistral Large 3: 1,431LMArenaAs of 10/28/2026
LMArena Text, Style ControlMulti-turn · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,499Mistral Large 3: 1,420LMArenaAs of 10/28/2026
LMArena Text, Style ControlNon-English · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,497Mistral Large 3: 1,398LMArenaAs of 10/28/2026
LMArena Text, Style ControlRussian prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,511Mistral Large 3: 1,407LMArenaAs of 10/28/2026
LMArena Text, Style ControlSoftware and IT services · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,538Mistral Large 3: 1,456LMArenaAs of 10/28/2026
LMArena Text, Style ControlSpanish prompts · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,488Mistral Large 3: 1,408LMArenaAs of 10/28/2026
LMArena Text, Style ControlWriting, literature and language · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,519Mistral Large 3: 1,390LMArenaAs of 10/28/2026

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  12. 21Claude Opus 5.5 vs. Grok 4.6
  13. 22Claude Opus 5.5 vs. GLM-5.2
  14. 23Claude Opus 5.5 vs. Gemini 4 Carbon
  15. 24Claude Opus 5.5 vs. DeepSeek V4.1 Flash 1017
  16. 25Claude Opus 5.5 vs. Claude Sonnet 4.5
  17. 26Claude Opus 5.5 vs. Muse Spark 1.3
  18. 27Claude Opus 5.5 vs. Claude Opus 4.8
  19. 28Claude Opus 5.5 vs. GPT-5.6 Luna
  20. 29Claude Opus 5.5 vs. Mistral Large 4
  21. 30Claude Opus 5.5 vs. GPT-5.6 Sol
  22. 31Claude Opus 5.5 vs. GPT-5.5
  23. 32Claude Opus 5.5 vs. DeepSeek-V4-Flash
  24. 33Claude Opus 5.5 vs. Grok 4.7
  25. 34Claude Opus 5.5 vs. GPT-6 Luna
  26. 35Claude Opus 5.5 vs. Claude Opus 4.5
  27. 36Claude Opus 5.5 vs. Claude Fable 5
  28. 37Claude Opus 5.5 vs. GPT-6 Sol
  29. 38GLM-5.3 vs. Mistral Large 3
  30. 39Claude Opus 5.5 vs. Gemini 3.6 Flash
  31. 40Claude Opus 5.5 vs. Mistral Medium 3.5
  32. 41Claude Opus 5.5 vs. Muse Wonder Full
  33. 42Claude Opus 5.5 vs. Claude Haiku 4.5
  34. 43Claude Opus 5.5 vs. Gemini 3.5 Flash
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  36. 45Mistral Large 4 vs. Mistral Large 3
  37. 46Claude Opus 5.5 vs. GPT-5.4
  38. 47Claude Opus 5.5 vs. GLM-5.1
  39. 48Claude Haiku 5.5 vs. Mistral Large 3
  40. 49DeepSeek-V4-Flash vs. Mistral Large 3
  41. 50DeepSeek V4.1 Flash 1017 vs. Mistral Large 3
  42. 51DeepSeek-V4.1-Flash vs. Mistral Large 3