GPT-5.1 Codex Mini vs Pixtral-12B

    Comparison

    As of August 25, 2026, Pixtral-12B is 87% cheaper per million tokens than GPT-5.1 Codex Mini. GPT-5.1 Codex Mini is $0.25 / $2.00 per million input/output tokens versus Pixtral-12B at $0.15 / $0.15. Sources: https://developers.openai.com/api/docs/pricing and https://docs.mistral.ai/platform/pricing/

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

    GPT-5.1 Codex Mini

    OpenAI

    $2.25blended / 1M

    Input

    $0.25

    Output

    $2.00

    400K ctx|Proprietary
    87%
    cheaper
    Better value

    Pixtral-12B

    Mistral

    $0.30blended / 1M

    Input

    $0.15

    Output

    $0.15

    128K ctx|Open Source
    Save $1.95 per million tokens by choosing Pixtral-12B over GPT-5.1 Codex Mini.

    GPT-5.1 Codex Mini vs Pixtral-12B comparison

    Token pricing, specs, and benchmarks side by side

    Shared benchmarks

    Each bar is share of the current leader on that eval. Click a row to open the board.

    GPT-5.1 Codex MiniPixtral-12B

    Score vs price

    MMMU. Left is cheaper. Up is a higher score. The line is the best score you can buy at each price.

    Best score at each priceGPT-5.1 Codex MiniPixtral-12B
    Metric
    GPT-5.1 Codex Mini
    Pixtral-12B
    Provider
    Provider
    OpenAI
    Mistral
    License
    Proprietary
    Open Source
    Release Date
    2025-11-12
    2024-09-17
    Pricing (per 1M tokens)
    Input Price+67%
    $0.25
    $0.15
    Output Price+1233%
    $2.00
    $0.15
    Blended (1M + 1M)
    $2.25
    $0.30
    Model Details
    Context Window
    400K
    128K
    Max Output Tokens
    128K
    8.2K
    Knowledge Cutoff
    2024-09-30
    N/A
    Throughput
    200 tok/s
    0.1 tok/s
    Benchmarks
    61.3%
    42.1%
    69.2%
    85.4%
    52.5%
    72%
    48.1%
    81.8%
    90.7%
    58%
    52.7%
    60.5%
    76.8%
    78.6%
    Benchmark Wins
    GPT-5.1 Codex Mini 1|0 Pixtral-12B

    Verdict

    GPT-5.1 Codex Mini vs Pixtral-12B: the bottom line

    Pixtral-12B offers significantly lower pricing, while GPT-5.1 Codex Mini leads on benchmark performance. Your choice depends on whether cost efficiency or raw capability matters more for your use case.

    GPT-5.1 Codex Mini vs Pixtral-12B FAQ

    Which is cheaper, GPT-5.1 Codex Mini or Pixtral-12B?

    As of August 25, 2026, Pixtral-12B is 87% cheaper on blended LLM API pricing. Pixtral-12B costs $0.15 per million input tokens and $0.15 per million output tokens ($0.30 blended 1M-in + 1M-out). GPT-5.1 Codex Mini costs $0.25 / $2.00 per million tokens ($2.25 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-5.1 Codex Mini vs Pixtral-12B cost per million tokens?

    GPT-5.1 Codex Mini OpenAI API pricing is $0.25 input and $2.00 output per million tokens via OpenAI. Pixtral-12B Mistral API pricing is $0.15 input and $0.15 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-5.1 Codex Mini or Pixtral-12B?

    Pixtral-12B has a published HumanEval score of 72%. GPT-5.1 Codex Mini does not have that eval on this page yet.

    What is the context window for GPT-5.1 Codex Mini vs Pixtral-12B?

    GPT-5.1 Codex Mini supports a 400K token context window, while Pixtral-12B supports 128K tokens. GPT-5.1 Codex Mini 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-5.1 Codex Mini or Pixtral-12B?

    GPT-5.1 Codex Mini leads on 1 of 1 shared benchmarks versus Pixtral-12B'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 GPT-5.1 Codex Mini or Pixtral-12B better for production use?

    Both GPT-5.1 Codex Mini and Pixtral-12B are production API models. For cost-sensitive production traffic, Pixtral-12B 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-5.1 Codex Mini and Pixtral-12B in my app?

    Yes. Call GPT-5.1 Codex Mini through OpenAI and Pixtral-12B 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-5.1 Codex Mini vs Pixtral-12B 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-5.1 Codex Mini and Pixtral-12B?

    GPT-5.1 Codex Mini supports up to 128K output tokens per request, while Pixtral-12B supports up to 8K 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-5.1 Codex Mini or Pixtral-12B?

    GPT-5.1 Codex Mini runs at approximately 200 tokens/second while Pixtral-12B runs at 0.1 tokens/second. GPT-5.1 Codex Mini 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 GPT-5.1 Codex Mini vs Pixtral-12B comparison?

    Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open GPT-5.1 Codex Mini or Pixtral-12B from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.

    GPT-5.1 Codex Mini vs Pixtral-12B pricing

    This comparison covers API pricing, context window, throughput, and benchmark scores. GPT-5.1 Codex Mini costs $0.25/M input and $2.00/M output. Pixtral-12B costs $0.15/M input and $0.15/M output via Mistral AI.

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

    The index

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