Devstral 2 123B Instruct 2512 vs gpt-oss-120b
At a Glance
| Compare |  Devstral 2 123B Instruct 2512Mistral AI |  gpt-oss-120bOpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v4.4 | UnrankedNot in the 57-model eligible cohort | #43 of 570.0 score · 1/3 sources · single-source provisional · missing LiveBench, ARC-AGI-2 · full-core range 0.0–66.7 |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.44Openrouter ↗ · Aug 29, 2026 | $0.0296Openrouter ↗ · Oct 19, 2026 |
| Output priceFrom · USD / 1M tokens | $2.20Openrouter ↗ · Aug 29, 2026 | $0.136Openrouter ↗ · Oct 19, 2026 |
| Context windowMaximum documented tokens | 262K | 131K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 28, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Devstral-2-123B-Instruct-2512 | gpt-oss-120b |
|---|---|---|
| Developer | Mistral AI | OpenAI |
| Family | Devstral 2 123b Instruct 2512 | Gpt Oss 120b |
| Model | Devstral-2-123B-Instruct-2512 | gpt-oss-120b |
| Version | Devstral-2-123B-Instruct-2512 | gpt-oss-120b |
| Lifecycle | active | active |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 262K | 131K |
| Total parameters | 125B | 116.8B |
| Active parameters | Unknown | 5.1B |
| License | other | apache-2.0 |
| Open weights | Yes | Yes |
| API available | Yes | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Openrouter (Standard) | Cerebras (Standard), Deepinfra (Standard), Fireworks Ai (Serverless, Standard), Groq (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Serverless, Standard) |
| Capabilities | chat, generation, tools | chat, generation, reasoning, tools |
Devstral 2 123B Instruct 2512 Capabilities
gpt-oss-120b Capabilities
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Primary Evidence
Sources and Freshness
Questions
Devstral 2 123B Instruct 2512 vs gpt-oss-120b FAQs
Is Devstral 2 123B Instruct 2512 or gpt-oss-120b better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Devstral 2 123B Instruct 2512 and gpt-oss-120b, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
Devstral 2 123B Instruct 2512 is $0.44 and gpt-oss-120b is $0.0296 per million tokens, so gpt-oss-120b is cheaper on this metric. Devstral 2 123B Instruct 2512 is $2.20 and gpt-oss-120b is $0.136 per million tokens, so gpt-oss-120b is cheaper on this metric.
Which has a larger context window, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
Devstral 2 123B Instruct 2512 has the larger sourced context window. Devstral 2 123B Instruct 2512 supports 262,144 tokens and gpt-oss-120b supports 131,072 tokens.
Which performs better in benchmarks, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Devstral 2 123B Instruct 2512 or gpt-oss-120b be self-hosted?+
Both models have the same sourced self-hosting status: supported. Devstral 2 123B Instruct 2512 is open weight; gpt-oss-120b is open weight.
Can Devstral 2 123B Instruct 2512 and gpt-oss-120b understand images?+
Devstral 2 123B Instruct 2512 is not documented with image input; gpt-oss-120b is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
Neither model has a sourced maximum output in this comparison, so a larger limit cannot be determined.
Do Devstral 2 123B Instruct 2512 and gpt-oss-120b support reasoning and tool use?+
Devstral 2 123B Instruct 2512: tool calling. gpt-oss-120b: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
Devstral 2 123B Instruct 2512 has 1 sourced provider route; gpt-oss-120b has 7, so gpt-oss-120b has broader tracked availability.
Which offers better value, Devstral 2 123B Instruct 2512 or gpt-oss-120b?+
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.