ZMIME
Comparison · 3 models · Updated Nov 2, 2026

Claude Haiku 3.5 vs Claude Haiku 5.5 vs Mistral Large 2.1

Claude Haiku 5.5 comes out ahead, 83 to 46 and 38 on our weighted score, and it is the cheaper option too.

  1. Anthropic

    Claude Haiku 3.5

    Released Oct 22, 2024

    46/100
    • ECI127.0
    • Price$0.80 / $4.00
    • Context200K
    Full specs Remove Claude Haiku 3.5
  2. Our pick

    Anthropic

    Claude Haiku 5.5

    Released Oct 7, 2026New

    83/100
    • ECI160.4
    • Price$0.10 / $0.50
    • Context1M
    Full specs Remove Claude Haiku 5.5

  3. Mistral AI

    Mistral Large 2.1

    Released Nov 18, 2024

    38/100
    • ECI128.6
    • Price$2.00 / $6.00
    • Context131K
    Full specs Remove Mistral Large 2.1
01 — Verdict

Claude Haiku 5.5 is our pick

Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Claude Haiku 3.5 (46) and Mistral Large 2.1 (38). It leads on capability, price, inputs & features and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityClaude Haiku 5.5Capabilities Index (ECI): Claude Haiku 5.5 160.4 · Mistral Large 2.1 128.6 · Claude Haiku 3.5 127.0
  • Lowest priceClaude Haiku 5.5Claude Haiku 5.5 $0.20 · Claude Haiku 3.5 $1.60 · Mistral Large 2.1 $3.00 per 1M tokens (3:1 blend)
  • Longest contextClaude Haiku 5.5Claude Haiku 5.5 1,000,000 · Claude Haiku 3.5 200,000 · Mistral Large 2.1 131,072 tokens
  • Widest inputsClaude Haiku 3.5 and Claude Haiku 5.5Claude Haiku 3.5: Text, Images, PDFs · Claude Haiku 5.5: Text, Images, PDFs · Mistral Large 2.1: Text
  • Self-hostingMistral Large 2.1Publishes downloadable weights
How the score is built
MeasureWeightClaude Haiku 3.5Claude Haiku 5.5Mistral Large 2.1
CapabilityCapabilities Index (ECI)50%488950
Price25%388026
Inputs & features15%608025
Context window10%326025
Overall100%46/10083/10038/100
02 — Side by side

Every spec in one table

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

Claude Haiku 3.5 vs Claude Haiku 5.5 vs Mistral Large 2.1 specifications side by side
SpecificationClaude Haiku 3.5AnthropicClaude Haiku 5.5AnthropicMistral Large 2.1Mistral AI
Capability
Capabilities Index (ECI)127.0160.4 (best)128.6
ECI rank#147 of 165#14 of 165 (best)#142 of 165
GPQA DiamondGraduate-level science questions38.1%89.7% (best)51.3%
FrontierMath Tiers 1–3Research-level mathematics—75.1%—
OTIS Mock AIME 2024–2025Competition mathematics4.3%98.9% (best)7.8%
SimpleQA VerifiedShort factual questions—23.8%—
Price per million tokens
Input$0.80$0.10 (best)$2.00
Output$4.00$0.50 (best)$6.00
Cached input—$0.01—
Blended (3:1)$1.60$0.20 (best)$3.00
Long-context rateSame rateOver 100K: $0.50 / $2.50Same rate
Price sourceMedian of 3 providersOfficial Anthropic APIMedian of 2 providers
Limits
Context window200,000 tokens1,000,000 tokens (best)131,072 tokens
Max output8,192 tokens128,000 tokens (best)16,384 tokens
Inputs and features
TextYesYesYes
ImagesYesYesNo
PDFsYesYesNo
AudioNoNoNo
VideoNoNoNo
ReasoningNoYeslow · medium · high · xhigh · maxNo
Tool callingYesYesYes
Structured outputNoYesNo
Availability
WeightsProprietaryProprietaryOpen
API model ID—claude-haiku-5-5—
API providers433 (best)2
ReleasedOct 22, 2024Oct 7, 2026Nov 18, 2024
Knowledge cutoffJul 31, 2024Jun 2026Nov 2024
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.

  • Claude Haiku 3.5$16.00
  • Claude Haiku 5.5$2.00
  • Mistral Large 2.1$32.00
04 — Questions

Which should you choose?

Which is better: Claude Haiku 3.5, Claude Haiku 5.5 or Mistral Large 2.1?

Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Claude Haiku 3.5 (46) and Mistral Large 2.1 (38). It leads on capability, price, inputs & features and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Claude Haiku 3.5, Claude Haiku 5.5 or Mistral Large 2.1?

Claude Haiku 5.5 is cheaper at $0.10 input / $0.50 output per million tokens (official Anthropic API price). Claude Haiku 3.5 costs $0.80 input / $4.00 output per million tokens (median across 3 API providers); Mistral Large 2.1 costs $2.00 input / $6.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.20 per million tokens for Claude Haiku 5.5 versus $1.60 for Claude Haiku 3.5 (8× as much) and $3.00 for Mistral Large 2.1 (15× as much).

Which scores higher on benchmarks?

Claude Haiku 5.5 scores higher on the Capabilities Index (ECI): Claude Haiku 5.5 160.4 (#14 of 165), Mistral Large 2.1 128.6 (#142 of 165) and Claude Haiku 3.5 127.0 (#147 of 165). Their confidence ranges do not overlap (157.3–163.8 vs 124.3–130.7), so the gap is a real one. On individual benchmarks: GPQA Diamond — Claude Haiku 5.5 89.7%, Mistral Large 2.1 51.3%, Claude Haiku 3.5 38.1%; OTIS Mock AIME 2024–2025 — Claude Haiku 5.5 98.9%, Mistral Large 2.1 7.8%, Claude Haiku 3.5 4.3%.

Which is better for coding?

There are no published SWE-bench Verified results for Claude Haiku 3.5, Claude Haiku 5.5 and Mistral Large 2.1 yet, so there is no like-for-like coding score. On overall capability, Claude Haiku 5.5 leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.

Which has the bigger context window?

Claude Haiku 5.5 has the largest context window at 1,000,000 tokens, against 200,000 for Claude Haiku 3.5 and 131,072 for Mistral Large 2.1. Maximum output per response: Claude Haiku 3.5 up to 8,192, Claude Haiku 5.5 up to 128,000, Mistral Large 2.1 up to 16,384 tokens.

Which can read images, PDFs, audio or video?

Claude Haiku 3.5 accepts text, images and PDFs; Claude Haiku 5.5 accepts text, images and PDFs; Mistral Large 2.1 accepts text. Claude Haiku 3.5 handles the widest range of inputs.

Are any of these open source?

Mistral Large 2.1 publishes its weights and can be self-hosted; Claude Haiku 3.5 and Claude Haiku 5.5 is proprietary.

Which is newer?

Claude Haiku 5.5 is the newest, released Oct 7, 2026. Mistral Large 2.1 came out Nov 18, 2024; Claude Haiku 3.5 came out Oct 22, 2024. Knowledge cutoff: Claude Haiku 3.5 Jul 31, 2024, Claude Haiku 5.5 Jun 2026, Mistral Large 2.1 Nov 2024.

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 Nov 2, 2026.

05 — Keep comparing

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