LongCat-Flash-Thinking vs Mistral Medium 3.5

    Comparison

    As of August 25, 2026, LongCat-Flash-Thinking is 83% cheaper per million tokens than Mistral Medium 3.5. LongCat-Flash-Thinking is $0.30 / $1.20 per million input/output tokens versus Mistral Medium 3.5 at $1.50 / $7.50. Sources: https://anotherwrapper.com/tools/llm-pricing and https://docs.mistral.ai/platform/pricing/

    Sources: AnotherWrapper LLM pricing (https://anotherwrapper.com/tools/llm-pricing); Mistral AI pricing (https://docs.mistral.ai/platform/pricing/)

    Better value

    LongCat-Flash-Thinking

    Meituan

    $1.50blended / 1M

    Input

    $0.30

    Output

    $1.20

    128K ctx|Open Source
    83%
    cheaper

    Mistral Medium 3.5

    Mistral

    $9.00blended / 1M

    Input

    $1.50

    Output

    $7.50

    256K ctx|Open Source
    Save $7.50 per million tokens by choosing LongCat-Flash-Thinking over Mistral Medium 3.5.

    LongCat-Flash-Thinking vs Mistral Medium 3.5 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.

    LongCat-Flash-ThinkingMistral Medium 3.5

    Score vs price

    SWE-bench Verified. Left is cheaper. Up is a higher score. The line is the best score you can buy at each price.

    Best score at each priceLongCat-Flash-ThinkingMistral Medium 3.5
    Metric
    LongCat-Flash-Thinking
    Mistral Medium 3.5
    Provider
    Provider
    Meituan
    Mistral
    License
    Open Source
    Open Source
    Release Date
    2025-09-22
    2026-04-29
    Pricing (per 1M tokens)
    Input Price-80%
    $0.30
    $1.50
    Output Price-84%
    $1.20
    $7.50
    Blended (1M + 1M)
    $1.50
    $9.00
    Model Details
    Context Window
    128K
    256K
    Max Output Tokens
    128K
    256K
    Knowledge Cutoff
    N/A
    N/A
    Throughput
    100 tok/s
    1 tok/s
    Benchmarks
    81.5%
    34.9%
    39.6%
    48.6%
    69%
    90.6%
    86.3%
    93.3%
    99.2%
    50.3%
    66.9%
    74.4%
    95.8%
    58.8%
    0%
    11.2%
    33.8%
    67.7%
    82.6%
    75.3%
    89.3%
    37.6%
    13.4%
    76.1%
    91.4%
    68.0%
    95.5%
    Benchmark Wins
    LongCat-Flash-Thinking 2|1 Mistral Medium 3.5

    Verdict

    LongCat-Flash-Thinking vs Mistral Medium 3.5: the bottom line

    LongCat-Flash-Thinking offers both lower pricing and stronger benchmark performance across the board, making it the clear value leader in this comparison.

    LongCat-Flash-Thinking vs Mistral Medium 3.5 FAQ

    Which is cheaper, LongCat-Flash-Thinking or Mistral Medium 3.5?

    As of August 25, 2026, LongCat-Flash-Thinking is 83% cheaper on blended LLM API pricing. LongCat-Flash-Thinking costs $0.30 per million input tokens and $1.20 per million output tokens ($1.50 blended 1M-in + 1M-out). Mistral Medium 3.5 costs $1.50 / $7.50 per million tokens ($9.00 blended). Sources: https://anotherwrapper.com/tools/llm-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 LongCat-Flash-Thinking vs Mistral Medium 3.5 cost per million tokens?

    LongCat-Flash-Thinking Meituan API pricing is $0.30 input and $1.20 output per million tokens via Meituan. Mistral Medium 3.5 Mistral API pricing is $1.50 input and $7.50 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, LongCat-Flash-Thinking or Mistral Medium 3.5?

    Mistral Medium 3.5 leads on SWE-bench Verified: LongCat-Flash-Thinking at 59.4% vs Mistral Medium 3.5 at 77.6%. SWE-bench measures real GitHub fixes; LiveCodeBench measures contest programming.

    What is the context window for LongCat-Flash-Thinking vs Mistral Medium 3.5?

    LongCat-Flash-Thinking supports a 128K token context window, while Mistral Medium 3.5 supports 256K tokens. Mistral Medium 3.5 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, LongCat-Flash-Thinking or Mistral Medium 3.5?

    LongCat-Flash-Thinking leads on 2 of 3 shared benchmarks versus Mistral Medium 3.5's 1 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 LongCat-Flash-Thinking or Mistral Medium 3.5 better for production use?

    Both LongCat-Flash-Thinking and Mistral Medium 3.5 are production API models. For cost-sensitive production traffic, LongCat-Flash-Thinking 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 LongCat-Flash-Thinking and Mistral Medium 3.5 in my app?

    Yes. Call LongCat-Flash-Thinking through Meituan and Mistral Medium 3.5 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 LongCat-Flash-Thinking vs Mistral Medium 3.5 pricing data?

    List rates are the latest published Meituan API pricing and Mistral API pricing, quoted per million tokens. Official rate sheets: https://anotherwrapper.com/tools/llm-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 LongCat-Flash-Thinking and Mistral Medium 3.5?

    LongCat-Flash-Thinking supports up to 128K output tokens per request, while Mistral Medium 3.5 supports up to 256K 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, LongCat-Flash-Thinking or Mistral Medium 3.5?

    LongCat-Flash-Thinking runs at approximately 100 tokens/second while Mistral Medium 3.5 runs at 1 tokens/second. LongCat-Flash-Thinking 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 LongCat-Flash-Thinking vs Mistral Medium 3.5 comparison?

    Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open LongCat-Flash-Thinking or Mistral Medium 3.5 from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.

    LongCat-Flash-Thinking vs Mistral Medium 3.5 pricing

    This comparison covers API pricing, context window, throughput, and benchmark scores. LongCat-Flash-Thinking costs $0.30/M input and $1.20/M output. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output via Mistral AI.

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

    The index

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