API cost decision in 10 seconds

GPT-5.2 Pro vs Devstral 2 2512

Pick Devstral 2 2512 for lower cost; pick GPT-5.2 Pro only if the larger context window matters more.

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

Budget verdict

Pick Devstral 2 2512 for lower cost; pick GPT-5.2 Pro only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Devstral 2 2512 is estimated at $1.4 vs $105 for GPT-5.2 Pro, saving $103.6 (98.7% lower).

Cost-first pickDevstral 2 2512
Context-first pickGPT-5.2 Pro
Sample savings$103.698.7%
10x traffic gap$1036

GPT-5.2 Pro has more context, but Devstral 2 2512 saves $103.6 on the standard workload. At 10x that traffic, the same price gap is about $1036. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Devstral 2 2512 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-5.2 ProDevstral 2 2512
Input-heavy / RAG5M input + 500K outputDevstral 2 2512$189$3
Balanced workload1M input + 1M outputDevstral 2 2512$189$2.4
Output-heavy chatbot1M input + 5M outputDevstral 2 2512$861$10.4
Cheaper input Devstral 2 2512 $21 vs $0.4 / 1M

Devstral 2 2512 is $20.6 cheaper per 1M input tokens (98.1% lower; 52.5x difference).

Cheaper output Devstral 2 2512 $168 vs $2 / 1M

Devstral 2 2512 is $166 cheaper per 1M output tokens (98.8% lower; 84x difference).

Larger context GPT-5.2 Pro 400K vs 262.14K

GPT-5.2 Pro has 137.86K more context (1.53x larger).

Sample workload Devstral 2 2512 $105 vs $1.4

Devstral 2 2512 is $103.6 cheaper on the standard workload (98.7% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-5.2 Pro Calculating… Estimated API cost
Devstral 2 2512 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

Devstral 2 2512 has the lower input price; Devstral 2 2512 has the lower output price; GPT-5.2 Pro offers the larger context window. For the 1M input plus 500K output sample, Devstral 2 2512 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $105 for GPT-5.2 Pro and $1.4 for Devstral 2 2512.

Best Fit

Choose GPT-5.2 Pro when you care most about larger context window.

Choose Devstral 2 2512 when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Devstral 2 2512 is estimated at $1.4 vs $105 for GPT-5.2 Pro, saving $103.6 (98.7% lower).
  • Devstral 2 2512 is $103.6 cheaper on the standard workload (98.7% lower).
  • Devstral 2 2512 is $20.6 cheaper per 1M input tokens (98.1% lower; 52.5x difference).
  • Devstral 2 2512 is $166 cheaper per 1M output tokens (98.8% lower; 84x difference).
  • GPT-5.2 Pro has 137.86K more context (1.53x larger).
Head-to-Head Specs
FeatureGPT-5.2 Pro
(OpenAI)		Devstral 2 2512
(Mistral)
Input Price
prompt tokens per 1M		$21$0.4
Completion Price
per 1M tokens		$168$2
Sample Workload Cost
1M input + 500K output		$105$1.4
Context Window400K262.14K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDevstral 2 2512On the standard 1M input plus 500K output workload, Devstral 2 2512 is estimated at $1.4 vs $105 for GPT-5.2 Pro, saving $103.6 (98.7% lower).
High-volume input processingDevstral 2 2512Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsDevstral 2 2512Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5.2 ProA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT-5.2 Pro when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-5.2 Pro when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-5.2 Pro when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT-5.2 Pro when lower sample workload cost matters most: $0.13.
Larger context near this budget
  • Llama 4 Scout offers 10M context with $0.23 sample workload cost.
  • Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
  • Grok 4.20 offers 2M context with $2.5 sample workload cost.
  • GPT-5.5 offers 1.05M context with $20 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

OpenAI catalog

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

Open OpenAI models

Mistral catalog

Check other Mistral models with comparable pricing, context, or release timing.

Open Mistral models
GPT-5.2 Pro

GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,...

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...