ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Mistral Small 3.1 24B vs Claude Haiku 4.5

Claude Haiku 4.5 comes out ahead, 58 to 55 on our weighted score, though Mistral Small 3.1 24B is 7.1× cheaper per token.

  1. Mistral AI

    Mistral Small 3.1 24B

    Released Mar 17, 2025

    55/100
    • ECI127.5
    • Price$0.229 / $0.436
    • Context128K
    Full specs Remove Mistral Small 3.1 24B
  2. Our pick

    Anthropic

    Claude Haiku 4.5

    Released Oct 15, 2025

    58/100
    • ECI142.4
    • Price$1.00 / $5.00
    • Context200K
    Full specs Remove Claude Haiku 4.5

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Claude Haiku 4.5 is our pick

Claude Haiku 4.5 is the better all-round choice, scoring 58/100 against Mistral Small 3.1 24B (55). It leads on capability, inputs & features and context window. Mistral Small 3.1 24B wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityClaude Haiku 4.5Capabilities Index (ECI): Claude Haiku 4.5 142.4 · Mistral Small 3.1 24B 127.5
  • Lowest priceMistral Small 3.1 24BMistral Small 3.1 24B $0.281 · Claude Haiku 4.5 $2.00 per 1M tokens (3:1 blend)
  • Longest contextClaude Haiku 4.5Claude Haiku 4.5 200,000 · Mistral Small 3.1 24B 128,000 tokens
  • Widest inputsClaude Haiku 4.5Mistral Small 3.1 24B: Text, Images · Claude Haiku 4.5: Text, Images, PDFs
  • Self-hostingMistral Small 3.1 24BPublishes downloadable weights
How the score is built
MeasureWeightMistral Small 3.1 24BClaude Haiku 4.5
CapabilityCapabilities Index (ECI)50%5069
Price25%7636
Inputs & features15%6080
Context window10%2432
Overall100%55/10058/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Mistral Small 3.1 24B vs Claude Haiku 4.5 specifications side by side
SpecificationMistral Small 3.1 24BMistral AIClaude Haiku 4.5Anthropic
Capability
Capabilities Index (ECI)127.5142.4 (best)
ECI rank#132 of 148#90 of 148 (best)
GPQA DiamondGraduate-level science questions47.5%71.2% (best)
OTIS Mock AIME 2024–2025Competition mathematics5.8%66.7% (best)
SimpleQA VerifiedShort factual questions—13.2%
Price per million tokens
Input$0.229 (best)$1.00
Output$0.436 (best)$5.00
Cached input—$0.10
Blended (3:1)$0.281 (best)$2.00
Long-context rateSame rateSame rate
Price sourceMedian of 2 providersOfficial Anthropic API
Limits
Context window128,000 tokens200,000 tokens (best)
Max output16,384 tokens64,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoYes
AudioNoNo
VideoNoNo
ReasoningNoYes
Tool callingYesYes
Structured outputYesYes
Availability
WeightsOpenProprietary
API model ID—claude-haiku-4-5
API providers234 (best)
ReleasedMar 17, 2025Oct 15, 2025
Knowledge cutoffJun 2024Feb 28, 2025
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Mistral Small 3.1 24B$3.16
  • Claude Haiku 4.5$20.00
04 — Questions

Which should you choose?

Which is better: Mistral Small 3.1 24B or Claude Haiku 4.5?

Claude Haiku 4.5 is the better all-round choice, scoring 58/100 against Mistral Small 3.1 24B (55). It leads on capability, inputs & features and context window. Mistral Small 3.1 24B wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Mistral Small 3.1 24B or Claude Haiku 4.5?

Mistral Small 3.1 24B is cheaper at $0.229 input / $0.436 output per million tokens (median across 2 API providers). Claude Haiku 4.5 costs $1.00 input / $5.00 output per million tokens (official Anthropic API price). At a typical mix of three input tokens to one output token, that is $0.281 per million tokens for Mistral Small 3.1 24B versus $2.00 for Claude Haiku 4.5 (7.1× as much).

Which scores higher on benchmarks?

Claude Haiku 4.5 scores higher on the Capabilities Index (ECI): Claude Haiku 4.5 142.4 (#90 of 148) and Mistral Small 3.1 24B 127.5 (#132 of 148). Their confidence ranges do not overlap (139.5–144.3 vs 122.6–129.4), so the gap is a real one. On individual benchmarks: GPQA Diamond — Claude Haiku 4.5 71.2%, Mistral Small 3.1 24B 47.5%; OTIS Mock AIME 2024–2025 — Claude Haiku 4.5 66.7%, Mistral Small 3.1 24B 5.8%.

Which is better for coding?

There are no published SWE-bench Verified results for Mistral Small 3.1 24B and Claude Haiku 4.5 yet, so there is no like-for-like coding score. On overall capability, Claude Haiku 4.5 leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Claude Haiku 4.5 has the largest context window at 200,000 tokens, against 128,000 for Mistral Small 3.1 24B. Maximum output per response: Mistral Small 3.1 24B up to 16,384, Claude Haiku 4.5 up to 64,000 tokens.

Which can read images, PDFs, audio or video?

Mistral Small 3.1 24B accepts text and images; Claude Haiku 4.5 accepts text, images and PDFs. Claude Haiku 4.5 handles the widest range of inputs.

Are any of these open source?

Mistral Small 3.1 24B publishes its weights and can be self-hosted; Claude Haiku 4.5 is proprietary.

Which is newer?

Claude Haiku 4.5 is the newest, released Oct 15, 2025. Mistral Small 3.1 24B came out Mar 17, 2025. Knowledge cutoff: Mistral Small 3.1 24B Jun 2024, Claude Haiku 4.5 Feb 28, 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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