GPT-4o Mini (07-18) vs Mistral Small 3.1 24B Instruct
GPT-4o Mini (07-18) (2024) and Mistral Small 3.1 24B Instruct (2025) are compact production models from OpenAI and MistralAI. GPT-4o Mini (07-18) ships a 128k-token context window, while Mistral Small 3.1 24B Instruct ships a 128k-token context window. On pricing, Mistral Small 3.1 24B Instruct costs $0.10/1M input tokens versus $0.15/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Mistral Small 3.1 24B Instruct is ~50% cheaper at $0.10/1M; pay for GPT-4o Mini (07-18) only for coding workflow support.
Decision scorecard
Local evidence first| Signal | GPT-4o Mini (07-18) | Mistral Small 3.1 24B Instruct |
|---|---|---|
| Best for | multimodal apps and provider-routed production | multimodal apps and provider-routed production |
| Decision fit | Coding, RAG, and Agents | RAG, Long context, and Vision |
| Context window | 128k | 128k |
| Cheapest output | $0.60/1M tokens | $0.30/1M tokens |
| Provider routes | 3 tracked | 6 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- GPT-4o Mini (07-18) uniquely exposes Code execution in local model data.
- Local decision data tags GPT-4o Mini (07-18) for Coding, RAG, and Agents.
- Mistral Small 3.1 24B Instruct has the lower cheapest tracked output price at $0.30/1M tokens.
- Mistral Small 3.1 24B Instruct has broader tracked provider coverage for fallback and route flexibility.
- Mistral Small 3.1 24B Instruct uniquely exposes Multimodal in local model data.
- Local decision data tags Mistral Small 3.1 24B Instruct for RAG, Long context, and Vision.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-4o Mini (07-18)
$270
Cheapest tracked route/tier: OpenAI API
Mistral Small 3.1 24B Instruct
$155
Cheapest tracked route/tier: Together AI
Estimated monthly gap: $115. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Mistral Small 3.1 24B Instruct is $0.30/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- Mistral Small 3.1 24B Instruct adds Multimodal in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- GPT-4o Mini (07-18) is $0.30/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Multimodal before moving production traffic.
- GPT-4o Mini (07-18) adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-07-18 | 2025-12-15 |
| Context window | 128k | 128k |
| Parameters | — | 24B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2023-10 | 2023-10 |
Pricing and availability
| Pricing attribute | GPT-4o Mini (07-18) | Mistral Small 3.1 24B Instruct |
|---|---|---|
| Input price | $0.15/1M tokens | $0.10/1M tokens |
| Output price | $0.60/1M tokens | $0.30/1M tokens |
| Providers |
Capabilities
| Capability | GPT-4o Mini (07-18) | Mistral Small 3.1 24B Instruct |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| JSON / Tool use | No | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
- Claude 3.5 Haiku vs GPT-4o Mini (07-18)
- ELYZA Japanese Llama 2 7B vs Mistral Small 3.1 24B Instruct
- GPT-4o Mini (07-18) vs Llama 4 Scout 17B-16E Instruct
- Llama 4 Scout 17B-16E Instruct vs Mistral Small 3.1 24B Instruct
- Mistral Small 3.1 24B Instruct vs Qwen3.5-9B
- Claude 3.5 Haiku vs Mistral Small 3.1 24B Instruct
Popular comparisons for GPT-4o Mini (07-18)
Popular comparisons for Mistral Small 3.1 24B Instruct
- Mistral Small 3.1 24B Instruct vs ELYZA Japanese Llama 2 7B
- Mistral Small 3.1 24B Instruct vs Llama 4 Scout 17B-16E Instruct
- Mistral Small 3.1 24B Instruct vs Qwen3.5-9B
- Mistral Small 3.1 24B Instruct vs Claude 3.5 Haiku
- Mistral Small 3.1 24B Instruct vs Gemini 2.5 Flash
- Mistral Small 3.1 24B Instruct vs Together AI - Llama 3 8B Lite
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.