Claude Opus 4.5 vs Mistral Large 3
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Claude Opus 4.5 | Mistral Large 3 |
|---|---|---|
| CostLower is better · Published-token output estimate | #34 of 36$0.380 per LiveBench case | UnrankedNot in the 36-model eligible cohort |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Opus 4.5 | Mistral Large 3 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,447.19100% of row best · rating · claude-opus-4-5-20251101-high-32k; 95% CI [1443.28922560, 1451.09589305]; votes 36271; rank 46 | 1,427.6299% of row best · rating · mistral-large-3; 95% CI [1424.57601414, 1430.66670291]; votes 65336; rank 85 |
| Overall ResultCounted from the protocol-matched rows above | 1 benchmark winOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Claude Opus 4.5 | Mistral Large 3 |
|---|---|---|
| Developer | Anthropic | Mistral AI |
| Family | Claude 4 | Mistral Large 3 |
| Model | Claude Opus 4.5 | Mistral Large 3 |
| Version | Claude Opus 4.5 | Mistral Large 3 |
| Lifecycle | active | active |
| Released | 2025-11-24 | 2025-12-02 |
| Knowledge cutoff | 2025-05-01 | Unknown |
| Input modalities | Text, Image | Text, Image, Document |
| Output modalities | Text | Text |
| Context window | 200K | 262K |
| Total parameters | Unknown | 675B |
| Active parameters | Unknown | 41B |
| License | Unknown | Apache-2.0 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Anthropic (Standard) | Mistral AI (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | agents, chat, generation, structured_outputs, tools, vision |
14 comparable fields · 11 material differences · Pair passes the primary-source comparison gate
Claude Opus 4.5 Capabilities
Mistral Large 3 Capabilities
Internal Comparison Graph
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Claude Opus 4.5Anthropic | vs | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Opus 4.5 vs Mistral Large 3 FAQs
Is Claude Opus 4.5 or Mistral Large 3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 4.5 and Mistral Large 3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 4.5 or Mistral Large 3?+
Claude Opus 4.5 is $5.00 and Mistral Large 3 is $0.50 per million tokens, so Mistral Large 3 is cheaper on this metric. Claude Opus 4.5 is $25.00 and Mistral Large 3 is $1.50 per million tokens, so Mistral Large 3 is cheaper on this metric.
Which has a larger context window, Claude Opus 4.5 or Mistral Large 3?+
Mistral Large 3 has the larger sourced context window. Claude Opus 4.5 supports 200K and Mistral Large 3 supports 262K.
Which performs better in benchmarks, Claude Opus 4.5 or Mistral Large 3?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Opus 4.5 or Mistral Large 3 be self-hosted?+
Mistral Large 3 is the only model in this pair currently marked as self-hostable. Claude Opus 4.5 is not marked open weight; Mistral Large 3 is open weight.
Can Claude Opus 4.5 and Mistral Large 3 understand images?+
Claude Opus 4.5 is documented with image input; Mistral Large 3 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 4.5 or Mistral Large 3?+
Neither has a larger sourced maximum output. Claude Opus 4.5 is 64K and Mistral Large 3 is —.
Do Claude Opus 4.5 and Mistral Large 3 support reasoning and tool use?+
Claude Opus 4.5: reasoning, tool calling, and image input. Mistral Large 3: tool calling and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 4.5 or Mistral Large 3?+
Claude Opus 4.5 has 1 sourced provider route; Mistral Large 3 has 2, so Mistral Large 3 has broader tracked availability.
Which offers better value, Claude Opus 4.5 or Mistral Large 3?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.