ZMIME
Comparison · 3 models · Updated Nov 2, 2026

Muse Wonder vs Claude Haiku 5.5 vs GPT-5.6 Sol

Claude Haiku 5.5 comes out ahead, 83 to 68 and 66 on our weighted score, and it is the cheaper option too.

  1. Meta

    Muse Wonder

    Released Oct 12, 2026New

    68/100
    • ECI161.7
    • Price$4.00 / $20.00
    • Context1.05M
    Full specs Remove Muse Wonder
  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. OpenAI

    GPT-5.6 Sol

    Released Jul 9, 2026

    66/100
    • ECI162.6
    • Price$4.00 / $20.00
    • Context1.05M
    Full specs Remove GPT-5.6 Sol
01 — Verdict

Claude Haiku 5.5 is our pick

Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Muse Wonder (68) and GPT-5.6 Sol (66). It leads on price. Muse Wonder wins on inputs & features. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-5.6 SolCapabilities Index (ECI): GPT-5.6 Sol 162.6 · Muse Wonder 161.7 · Claude Haiku 5.5 160.4
  • Lowest priceClaude Haiku 5.5Claude Haiku 5.5 $0.20 · Muse Wonder $8.00 · GPT-5.6 Sol $8.00 per 1M tokens (3:1 blend)
  • Longest contextGPT-5.6 Sol and Muse WonderGPT-5.6 Sol 1,050,000 · Muse Wonder 1,048,576 · Claude Haiku 5.5 1,000,000 tokens
  • Widest inputsMuse WonderMuse Wonder: Text, Images, PDFs, Audio, Video · Claude Haiku 5.5: Text, Images, PDFs · GPT-5.6 Sol: Text, Images, PDFs
  • Self-hostingNo open weightsAll three are available only through APIs
How the score is built
MeasureWeightMuse WonderClaude Haiku 5.5GPT-5.6 Sol
CapabilityCapabilities Index (ECI)50%918992
Price25%7807
Inputs & features15%1008080
Context window10%616061
Overall100%68/10083/10066/100
02 — Side by side

Every spec in one table

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

Muse Wonder vs Claude Haiku 5.5 vs GPT-5.6 Sol specifications side by side
SpecificationMuse WonderMetaClaude Haiku 5.5AnthropicGPT-5.6 SolOpenAI
Capability
Capabilities Index (ECI)161.7160.4162.6 (best)
ECI rank#13 of 165#14 of 165#12 of 165 (best)
GPQA DiamondGraduate-level science questions—89.7%93.5% (best)
FrontierMath Tiers 1–3Research-level mathematics82.1%75.1%89.1% (best)
OTIS Mock AIME 2024–2025Competition mathematics99.4%98.9%100% (best)
SimpleQA VerifiedShort factual questions—23.8%69.7% (best)
Price per million tokens
Input$4.00$0.10 (best)$4.00
Output$20.00$0.50 (best)$20.00
Cached input$0.20$0.01 (best)$0.40
Blended (3:1)$8.00$0.20 (best)$8.00
Long-context rateSame rateOver 100K: $0.50 / $2.50Over 272K: $8.00 / $30.00
Price sourceOfficial Meta APIOfficial Anthropic APIOfficial OpenAI API
Limits
Context window1,048,576 tokens1,000,000 tokens1,050,000 tokens (best)
Max output131,072 tokens (best)128,000 tokens128,000 tokens
Inputs and features
TextYesYesYes
ImagesYesYesYes
PDFsYesYesYes
AudioYesNoNo
VideoYesNoNo
ReasoningYesminimal · low · medium · high · xhigh · maxYeslow · medium · high · xhigh · maxYeslow · medium · high · xhigh · max
Tool callingYesYesYes
Structured outputYesYesYes
Availability
WeightsProprietaryProprietaryProprietary
API model IDmuse-wonder-1.0claude-haiku-5-5gpt-5.6-sol
API providers93349 (best)
ReleasedOct 12, 2026Oct 7, 2026Jul 9, 2026
Knowledge cutoff—Jun 2026Feb 16, 2026
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.

  • Muse Wonder$80.00
  • Claude Haiku 5.5$2.00
  • GPT-5.6 Sol$80.00
04 — Questions

Which should you choose?

Which is better: Muse Wonder, Claude Haiku 5.5 or GPT-5.6 Sol?

Claude Haiku 5.5 is the better all-round choice, scoring 83/100 against Muse Wonder (68) and GPT-5.6 Sol (66). It leads on price. Muse Wonder wins on inputs & features. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Muse Wonder, Claude Haiku 5.5 or GPT-5.6 Sol?

Claude Haiku 5.5 is cheaper at $0.10 input / $0.50 output per million tokens (official Anthropic API price). Muse Wonder costs $4.00 input / $20.00 output per million tokens (official Meta API price); GPT-5.6 Sol costs $4.00 input / $20.00 output per million tokens (official OpenAI API price). 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 $8.00 for Muse Wonder (40× as much) and $8.00 for GPT-5.6 Sol (40× as much).

Which scores higher on benchmarks?

GPT-5.6 Sol scores higher on the Capabilities Index (ECI): GPT-5.6 Sol 162.6 (#12 of 165), Muse Wonder 161.7 (#13 of 165) and Claude Haiku 5.5 160.4 (#14 of 165). The confidence ranges of the top two overlap (159.6–166.2 vs 159.2–164.6), so treat the gap as small. On individual benchmarks: FrontierMath Tiers 1–3 — GPT-5.6 Sol 89.1%, Muse Wonder 82.1%, Claude Haiku 5.5 75.1%; OTIS Mock AIME 2024–2025 — GPT-5.6 Sol 100%, Muse Wonder 99.4%, Claude Haiku 5.5 98.9%.

Which is better for coding?

There are no published SWE-bench Verified results for Muse Wonder, Claude Haiku 5.5 and GPT-5.6 Sol yet, so there is no like-for-like coding score. On overall capability, GPT-5.6 Sol 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?

GPT-5.6 Sol and Muse Wonder have the largest context windows (1,050,000 and 1,048,576 tokens), against 1,000,000 for Claude Haiku 5.5. Maximum output per response: Muse Wonder up to 131,072, Claude Haiku 5.5 up to 128,000, GPT-5.6 Sol up to 128,000 tokens.

Which can read images, PDFs, audio or video?

Muse Wonder accepts text, images, PDFs, audio and video; Claude Haiku 5.5 accepts text, images and PDFs; GPT-5.6 Sol accepts text, images and PDFs. Muse Wonder handles the widest range of inputs.

Are any of these open source?

No. Muse Wonder, Claude Haiku 5.5 and GPT-5.6 Sol are proprietary and only available through APIs and apps.

Which is newer?

Muse Wonder is the newest, released Oct 12, 2026. Claude Haiku 5.5 came out Oct 7, 2026; GPT-5.6 Sol came out Jul 9, 2026. Knowledge cutoff: Claude Haiku 5.5 Jun 2026, GPT-5.6 Sol Feb 16, 2026.

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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