API cost decision in 10 seconds

Devstral 2 2512 vs Mistral Medium 3.1

The standard workload cost is tied; choose by context window, provider fit, latency, or model quality.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

The standard workload cost is tied; choose by context window, provider fit, latency, or model quality.

Both models are estimated at $1.4 for the standard 1M input plus 500K output workload.

Cost-first pickTie
Context-first pickDevstral 2 2512
Sample savings$00%
10x traffic gap$0

Context-window winner: Devstral 2 2512. Cost does not separate this pair on the standard workload, so the next decision point is context window and model behavior.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

The two models stay tied across the input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickDevstral 2 2512Mistral Medium 3.1
Input-heavy / RAG5M input + 500K outputTie$3$3
Balanced workload1M input + 1M outputTie$2.4$2.4
Output-heavy chatbot1M input + 5M outputTie$10.4$10.4
Cheaper input Tie $0.4 vs $0.4 / 1M

Both models report the same input price at $0.4 per 1M tokens.

Cheaper output Tie $2 vs $2 / 1M

Both models report the same output price at $2 per 1M tokens.

Larger context Devstral 2 2512 262.14K vs 131.07K

Devstral 2 2512 has 131.07K more context (2x larger).

Sample workload Tie $1.4 vs $1.4

Both models have the same estimated cost for the standard 1M input plus 500K output workload: $1.4.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Devstral 2 2512 Calculating… Estimated API cost
Mistral Medium 3.1 Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

both models tie on input price; both models tie on output price; Devstral 2 2512 offers the larger context window. For the 1M input plus 500K output sample, the standard workload cost is tied.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.4 for Devstral 2 2512 and $1.4 for Mistral Medium 3.1.

Best Fit

Choose Devstral 2 2512 when you care most about larger context window.

Choose Mistral Medium 3.1 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes
  • Both models are estimated at $1.4 for the standard 1M input plus 500K output workload.
  • Both models have the same estimated cost for the standard 1M input plus 500K output workload: $1.4.
  • Both models report the same input price at $0.4 per 1M tokens.
  • Both models report the same output price at $2 per 1M tokens.
  • Devstral 2 2512 has 131.07K more context (2x larger).
Head-to-Head Specs
FeatureDevstral 2 2512
(Mistral)		Mistral Medium 3.1
(Mistral)
Input Price
prompt tokens per 1M		$0.4$0.4
Completion Price
per 1M tokens		$2$2
Sample Workload Cost
1M input + 500K output		$1.4$1.4
Context Window262.14K131.07K
Release Date
Popularity#144#150

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionTieBoth models are estimated at $1.4 for the standard 1M input plus 500K output workload.
High-volume input processingTieLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsTieLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workDevstral 2 2512A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Mistral Nemo can replace Devstral 2 2512 when lower sample workload cost matters most: $0.04.
  • Mistral Small 3 can replace Devstral 2 2512 when lower sample workload cost matters most: $0.09.
  • Ministral 3 3B 2512 can replace Devstral 2 2512 when lower sample workload cost matters most: $0.15.
  • Mistral Small 3.2 24B can replace Devstral 2 2512 when lower sample workload cost matters most: $0.17.
Larger context near this budget
  • Llama 4 Scout offers 10M context with $0.25 sample workload cost.
  • Owl Alpha offers 1.05M context with $0 sample workload cost.
  • DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
  • MiMo-V2.5 offers 1.05M context with $0.28 sample workload cost.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

Mistral catalog

Review all tracked Mistral models before deciding whether this matchup is the right shortlist.

Open Mistral models
Devstral 2 2512

Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring...

Mistral Medium 3.1

Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances...