As of August 20, 2026, Laguna S 2.1 is 97% cheaper per million tokens than Mistral Medium 3.5. Laguna S 2.1 is $0.10 / $0.20 per million input/output tokens versus Mistral Medium 3.5 at $1.50 / $7.50. Sources: https://poolside.ai and https://docs.mistral.ai/platform/pricing/
Sources: Poolside pricing (https://poolside.ai); Mistral AI pricing (https://docs.mistral.ai/platform/pricing/)
Laguna S 2.1
Poolside
Input
$0.10
Output
$0.20
Mistral Medium 3.5
Mistral
Input
$1.50
Output
$7.50
Token pricing, specs, and benchmarks side by side
Laguna S 2.1Mistral Medium 3.5Verdict
Laguna S 2.1 offers both lower pricing and stronger benchmark performance across the board, making it the clear value leader in this comparison.
As of August 20, 2026, Laguna S 2.1 is 97% cheaper on blended LLM API pricing. Laguna S 2.1 costs $0.10 per million input tokens and $0.20 per million output tokens ($0.30 blended 1M-in + 1M-out). Mistral Medium 3.5 costs $1.50 / $7.50 per million tokens ($9.00 blended). Sources: https://poolside.ai and https://docs.mistral.ai/platform/pricing/. The cheapest LLM for your app still depends on how many output tokens you generate.
Laguna S 2.1 Poolside API pricing is $0.10 input and $0.20 output per million tokens via Poolside. 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.
Mistral Medium 3.5 has a published SWE-bench Verified score of 77.6%. Laguna S 2.1 does not have that eval on this page yet.
Laguna S 2.1 supports a 1M token context window, while Mistral Medium 3.5 supports 256K tokens. Laguna S 2.1 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.
Laguna S 2.1 leads on 1 of 1 shared benchmarks versus Mistral Medium 3.5'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.
Both Laguna S 2.1 and Mistral Medium 3.5 are production API models. For cost-sensitive production traffic, Laguna S 2.1 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.
Yes. Call Laguna S 2.1 through Poolside 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.
List rates are the latest published Poolside API pricing and Mistral API pricing, quoted per million tokens. Official rate sheets: https://poolside.ai 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.
Laguna S 2.1 supports up to an unspecified number of 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.
Mistral Medium 3.5 has a measured throughput of approximately 0.9605563235026328 tokens/second. Throughput data for Laguna S 2.1 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.
Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open Laguna S 2.1 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.
This comparison covers API pricing, context window, throughput, and benchmark scores. Laguna S 2.1 costs $0.10/M input and $0.20/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.
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