Which is cheaper, GPT-5 Codex or Mistral Small 3.1 24B Base?
As of August 20, 2026, Mistral Small 3.1 24B Base is 96% cheaper on blended LLM API pricing. Mistral Small 3.1 24B Base costs $0.10 per million input tokens and $0.30 per million output tokens ($0.40 blended 1M-in + 1M-out). GPT-5 Codex costs $1.25 / $10.00 per million tokens ($11.25 blended). Sources: https://developers.openai.com/api/docs/pricing and https://docs.mistral.ai/platform/pricing/. The cheapest LLM for your app still depends on how many output tokens you generate.
How much does GPT-5 Codex vs Mistral Small 3.1 24B Base cost per million tokens?
GPT-5 Codex OpenAI API pricing is $1.25 input and $10.00 output per million tokens via OpenAI. Mistral Small 3.1 24B Base Mistral API pricing is $0.10 input and $0.30 output per million tokens via Mistral AI. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.
Which is better for coding, GPT-5 Codex or Mistral Small 3.1 24B Base?
GPT-5 Codex has a published SWE-bench Verified score of 74.5%. Mistral Small 3.1 24B Base does not have that eval on this page yet.
What is the context window for GPT-5 Codex vs Mistral Small 3.1 24B Base?
GPT-5 Codex supports a 400K token context window, while Mistral Small 3.1 24B Base supports 128K tokens. GPT-5 Codex offers a larger context window. Filling a larger window bills more input tokens, so the cheaper-per-million model can still cost more on long documents.
Which model performs better on benchmarks, GPT-5 Codex or Mistral Small 3.1 24B Base?
Shared benchmark scores for GPT-5 Codex and Mistral Small 3.1 24B Base are still limited. Check the comparison table for the evals each model has published. Check the comparison table for GPQA Diamond, SWE-bench, MMLU, HLE, and the other evals we track. Token price and benchmark score together are the usual LLM comparison, not either number alone.
Is GPT-5 Codex or Mistral Small 3.1 24B Base better for production use?
Both GPT-5 Codex and Mistral Small 3.1 24B Base are production API models. For cost-sensitive production traffic, Mistral Small 3.1 24B Base has better economics on the blended 1M-in + 1M-out scale. For maximum capability, weight the benchmark table for your domain. Many production stacks route cheap models for drafts and a frontier model for the hard turn, which is usually cheaper than sending everything to the expensive API.
Can I switch between GPT-5 Codex and Mistral Small 3.1 24B Base in my app?
Yes. Call GPT-5 Codex through OpenAI and Mistral Small 3.1 24B Base through Mistral AI with separate API keys, or through a gateway that already wraps both. Keep prompts in tokens, not characters, when you estimate the invoice. AnotherWrapper templates can swap providers without rewriting auth and billing.
How accurate is this GPT-5 Codex vs Mistral Small 3.1 24B Base pricing data?
List rates are the latest published OpenAI API pricing and Mistral API pricing, quoted per million tokens. Official rate sheets: https://developers.openai.com/api/docs/pricing and https://docs.mistral.ai/platform/pricing/. Prompt caching, batch APIs, and committed-use discounts can change the invoice. Benchmark scores are from official publications and independent evals, updated as new numbers land.
What is the output token limit for GPT-5 Codex and Mistral Small 3.1 24B Base?
GPT-5 Codex supports up to an unspecified number of output tokens per request, while Mistral Small 3.1 24B Base supports up to 128K output tokens. Output tokens are usually the expensive half of API pricing, so a higher max output cap is a capability, not a discount.
Which model has better throughput, GPT-5 Codex or Mistral Small 3.1 24B Base?
Mistral Small 3.1 24B Base has a measured throughput of approximately 137.1 tokens/second. Throughput data for GPT-5 Codex is not yet available. Throughput (tokens per second) and time-to-first-token are why two models with the same per-million-token price can still feel different in chat and agents.
How do I switch the models in this GPT-5 Codex vs Mistral Small 3.1 24B Base comparison?
Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open GPT-5 Codex or Mistral Small 3.1 24B Base from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.
