Codex Mini vs Devstral 2
Compare OpenAI and Mistral AI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Codex Mini
Devstral 2
Cost Differences
Devstral 2 costs less than Codex Mini
Feature Comparison
| Feature | Codex Mini | Devstral 2 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Input Price | $1.50/1M tokens | $0.40/1M tokens |
| Output Price | $6.00/1M tokens | $2.00/1M tokens |
| Context Window | 200,000 tokens | 262,144 tokens |
| Max Output | 32,768 tokens | 32,768 tokens |
| Category | efficient | efficient |
| Capabilities | textcodereasoning | textcode |
| Release Date | 2/2/2026 | 12/9/2025 |
Codex Mini vs Devstral 2: Which Should You Choose?
Choosing between Codex Mini and Devstral 2 depends on your priorities: cost efficiency, context length, or raw capability. Devstral 2 is the more affordable option at $0.40/1M input tokens — 73% cheaper than Codex Mini. Meanwhile, Devstral 2 offers a significantly larger context window at 262,144 tokens vs 200,000 for Codex Mini.
These models come from different providers — OpenAI and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with OpenAI, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
Both models are in the efficient category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Devstral 2 would save you roughly $930.00/month compared to Codex Mini. For startups and indie developers, that difference can be significant.
Output costs matter too. Codex Mini charges $6.00/1M output tokens vs $2.00 for Devstral 2. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Devstral 2 has the edge here at $2.00/1M output tokens.
Best Use Cases
Choose Codex Mini when:
- • You need more capabilities (reasoning)
- • You're already using OpenAI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose Devstral 2 when:
- • Budget is a primary concern
- • You need a larger context window (262,144 tokens)
- • You're already using Mistral AI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Codex Mini (OpenAI)
Devstral 2 (Mistral AI)
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