Devstral Small 1.1 vs o1-preview

    Comparison

    As of August 23, 2026, Devstral Small 1.1 is 99% cheaper per million tokens than o1-preview. Devstral Small 1.1 is $0.10 / $0.30 per million input/output tokens versus o1-preview at $15.00 / $60.00. Sources: https://docs.mistral.ai/platform/pricing/ and https://developers.openai.com/api/docs/pricing

    Sources: Mistral AI pricing (https://docs.mistral.ai/platform/pricing/); OpenAI API pricing (https://developers.openai.com/api/docs/pricing)

    Better value

    Devstral Small 1.1

    Mistral

    $0.40blended / 1M

    Input

    $0.10

    Output

    $0.30

    128K ctx|Open Source
    99%
    cheaper

    o1-preview

    OpenAI

    $75.00blended / 1M

    Input

    $15.00

    Output

    $60.00

    128K ctx|Proprietary
    Save $74.60 per million tokens by choosing Devstral Small 1.1 over o1-preview.

    Devstral Small 1.1 vs o1-preview comparison

    Token pricing, specs, and benchmarks side by side

    Metric
    Devstral Small 1.1
    o1-preview
    Provider
    Provider
    Mistral
    OpenAI
    License
    Open Source
    Proprietary
    Release Date
    2025-07-11
    2024-09-12
    Pricing (per 1M tokens)
    Input Price-99%
    $0.10
    $15.00
    Output Price-100%
    $0.30
    $60.00
    Blended (1M + 1M)
    $0.40
    $75.00
    Model Details
    Context Window
    128K
    128K
    Max Output Tokens
    128K
    32.8K
    Knowledge Cutoff
    N/A
    October 2023
    Throughput
    137.1 tok/s
    66 tok/s
    Benchmarks
    73.3%
    50.3%
    42.4%
    31.1%
    42%
    90.8%
    85.5%
    52.3%
    90.8%
    Benchmark Wins
    Devstral Small 1.1 1|0 o1-preview

    Verdict

    Devstral Small 1.1 vs o1-preview: the bottom line

    Devstral Small 1.1 offers both lower pricing and stronger benchmark performance across the board, making it the clear value leader in this comparison.

    Devstral Small 1.1 vs o1-preview FAQ

    Which is cheaper, Devstral Small 1.1 or o1-preview?

    As of August 23, 2026, Devstral Small 1.1 is 99% cheaper on blended LLM API pricing. Devstral Small 1.1 costs $0.10 per million input tokens and $0.30 per million output tokens ($0.40 blended 1M-in + 1M-out). o1-preview costs $15.00 / $60.00 per million tokens ($75.00 blended). Sources: https://docs.mistral.ai/platform/pricing/ and https://developers.openai.com/api/docs/pricing. The cheapest LLM for your app still depends on how many output tokens you generate.

    How much does Devstral Small 1.1 vs o1-preview cost per million tokens?

    Devstral Small 1.1 Mistral API pricing is $0.10 input and $0.30 output per million tokens via Mistral AI. o1-preview OpenAI API pricing is $15.00 input and $60.00 output per million tokens via OpenAI. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.

    Which is better for coding, Devstral Small 1.1 or o1-preview?

    Devstral Small 1.1 leads on SWE-bench Verified: Devstral Small 1.1 at 53.6% vs o1-preview at 41.3%. SWE-bench measures real GitHub fixes; LiveCodeBench measures contest programming.

    What is the context window for Devstral Small 1.1 vs o1-preview?

    Devstral Small 1.1 supports a 128K token context window, while o1-preview supports 128K tokens. Both models have the same context window size. 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, Devstral Small 1.1 or o1-preview?

    Devstral Small 1.1 leads on 1 of 1 shared benchmarks versus o1-preview's 0 wins. 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 Devstral Small 1.1 or o1-preview better for production use?

    Both Devstral Small 1.1 and o1-preview are production API models. For cost-sensitive production traffic, Devstral Small 1.1 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 Devstral Small 1.1 and o1-preview in my app?

    Yes. Call Devstral Small 1.1 through Mistral AI and o1-preview through OpenAI 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 Devstral Small 1.1 vs o1-preview pricing data?

    List rates are the latest published Mistral API pricing and OpenAI API pricing, quoted per million tokens. Official rate sheets: https://docs.mistral.ai/platform/pricing/ and https://developers.openai.com/api/docs/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 Devstral Small 1.1 and o1-preview?

    Devstral Small 1.1 supports up to 128K output tokens per request, while o1-preview supports up to 33K 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, Devstral Small 1.1 or o1-preview?

    Devstral Small 1.1 runs at approximately 137.1 tokens/second while o1-preview runs at 66 tokens/second. Devstral Small 1.1 is faster in raw throughput. 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 Devstral Small 1.1 vs o1-preview comparison?

    Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open Devstral Small 1.1 or o1-preview from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.

    Devstral Small 1.1 vs o1-preview pricing

    This comparison covers API pricing, context window, throughput, and benchmark scores. Devstral Small 1.1 costs $0.10/M input and $0.30/M output via Mistral AI. o1-preview costs $15.00/M input and $60.00/M output.

    Rank both on the LLM leaderboard, SWE-bench, and Humanity's Last Exam.

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