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Comparison · 2 models · Updated Nov 2, 2026

Claude Sonnet 5.5 vs Jamba Large

Claude Sonnet 5.5 comes out ahead, 46 to 29 on our weighted score, though Jamba Large is 13% cheaper per token.

  1. Our pick

    Anthropic

    Claude Sonnet 5.5

    Released Sep 28, 2026New

    46/100
    • ECI166.7
    • Price$2.00 / $10.00
    • Context1M
    Full specs Remove Claude Sonnet 5.5

  2. AI21 Labs

    Jamba Large

    Released Jul 3, 2025

    29/100
    • ECI—
    • Price$2.00 / $8.00
    • Context256K
    Full specs Remove Jamba Large

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Claude Sonnet 5.5 is our pick

Claude Sonnet 5.5 is the better all-round choice, scoring 46/100 against Jamba Large (29). It leads on inputs & features and context window. Jamba Large wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceJamba LargeJamba Large $3.50 · Claude Sonnet 5.5 $4.00 per 1M tokens (3:1 blend)
  • Longest contextClaude Sonnet 5.5Claude Sonnet 5.5 1,000,000 · Jamba Large 256,000 tokens
  • Widest inputsClaude Sonnet 5.5Claude Sonnet 5.5: Text, Images, PDFs · Jamba Large: Text
  • Self-hostingJamba LargePublishes downloadable weights
How the score is built
MeasureWeightClaude Sonnet 5.5Jamba Large
Price50%2023
Inputs & features30%8035
Context window20%6036
Overall100%46/10029/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

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

Claude Sonnet 5.5 vs Jamba Large specifications side by side
SpecificationClaude Sonnet 5.5AnthropicJamba LargeAI21 Labs
Capability
Capabilities Index (ECI)166.7—
ECI rank#5 of 165—
GPQA DiamondGraduate-level science questions95.6%—
FrontierMath Tiers 1–3Research-level mathematics88.8%—
OTIS Mock AIME 2024–2025Competition mathematics100%—
SimpleQA VerifiedShort factual questions46.5%—
Price per million tokens
Input$2.00$2.00
Output$10.00$8.00 (best)
Cached input$0.10—
Blended (3:1)$4.00$3.50 (best)
Long-context rateSame rateSame rate
Price sourceOfficial Anthropic APIOfficial AI21 Labs API
Limits
Context window1,000,000 tokens (best)256,000 tokens
Max output128,000 tokens (best)4,096 tokens
Inputs and features
TextYesYes
ImagesYesNo
PDFsYesNo
AudioNoNo
VideoNoNo
ReasoningYeslow · medium · high · xhigh · maxNo
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryOpen
API model IDclaude-sonnet-5-5jamba-large
API providers34 (best)1
ReleasedSep 28, 2026Jul 3, 2025
Knowledge cutoffJun 2026Aug 22, 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 Sonnet 5.5$40.00
  • Jamba Large$36.00
04 — Questions

Which should you choose?

Which is better: Claude Sonnet 5.5 or Jamba Large?

Claude Sonnet 5.5 is the better all-round choice, scoring 46/100 against Jamba Large (29). It leads on inputs & features and context window. Jamba Large wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Claude Sonnet 5.5 or Jamba Large?

Jamba Large is cheaper at $2.00 input / $8.00 output per million tokens (official AI21 Labs API price). Claude Sonnet 5.5 costs $2.00 input / $10.00 output per million tokens (official Anthropic API price). At a typical mix of three input tokens to one output token, that is $3.50 per million tokens for Jamba Large versus $4.00 for Claude Sonnet 5.5 (1.1× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Claude Sonnet 5.5 has an ECI of 166.7 and Jamba Large has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Claude Sonnet 5.5 and Jamba Large yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Claude Sonnet 5.5 has the largest context window at 1,000,000 tokens, against 256,000 for Jamba Large. Maximum output per response: Claude Sonnet 5.5 up to 128,000, Jamba Large up to 4,096 tokens.

Which can read images, PDFs, audio or video?

Claude Sonnet 5.5 accepts text, images and PDFs; Jamba Large accepts text. Claude Sonnet 5.5 handles the widest range of inputs.

Are any of these open source?

Jamba Large publishes its weights and can be self-hosted; Claude Sonnet 5.5 is proprietary.

Which is newer?

Claude Sonnet 5.5 is the newest, released Sep 28, 2026. Jamba Large came out Jul 3, 2025. Knowledge cutoff: Claude Sonnet 5.5 Jun 2026, Jamba Large Aug 22, 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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