Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | 123B | 550B |
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 256k | 1M |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.40Mistral | $0.40DeepInfra |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | $2.00Mistral | $1.76DeepInfra |
| $180Mistral | $210DeepInfra · fp4 | |
| Benchmarks | ||
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 72.2% | 71.9% |
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 49% |
SWE-Bench MultilingualMultilingual coding — Like SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | 61.3% | — |
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 56.4% |
Terminal-Bench 2.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | 32.6% | — |
BrowseCompWeb browsing — Can the AI browse the web and track down hard-to-find answers? Higher is better. | — | 44.4% |
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | — | 26.7% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 86.7% |
AA Intelligence IndexOverall intelligence — Artificial Analysis composite intelligence index across evals | — | 48 |
| Overview | ||
| Company | Mistral | NVIDIA |
| Release date | Dec 9 2025 | Jun 4 2026 |
| Access | Open Weight | Open Source |
| Model details | View model | View model |
Other comparisons
Devstral 2 (123B)vsClaude Haiku 5.5Nemotron 3 UltravsClaude Haiku 5.5Devstral 2 (123B)vsGPT-6.1 SolNemotron 3 UltravsGPT-6.1 SolDevstral 2 (123B)vsGemini 4 ArgonNemotron 3 UltravsGemini 4 ArgonDevstral 2 (123B)vsMuse Spark OpenNemotron 3 UltravsMuse Spark OpenDevstral 2 (123B)vsGrok 4.7Nemotron 3 UltravsGrok 4.7Devstral 2 (123B)vsDeepSeek-V4.1-Flash-1017Nemotron 3 UltravsDeepSeek-V4.1-Flash-1017Frequently asked questions
Devstral 2 (123B) leads Nemotron 3 Ultra on 1 of the 1 benchmark they both report (SWE-Bench Verified). Devstral 2 (123B) shipped 177 days before Nemotron 3 Ultra, so benchmark comparisons should account for the intervening progress.
Devstral 2 (123B) has 123B parameters, while Nemotron 3 Ultra has 550B. Context windows are 256k (Devstral 2 (123B)) vs 1M (Nemotron 3 Ultra). Devstral 2 (123B) is open weight, while Nemotron 3 Ultra is open source.
On SWE-Bench Verified, Devstral 2 (123B) leads at 72.2% vs Nemotron 3 Ultra at 71.9%.