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Model comparison

Amazon Nova 2 Pro vs GLM 5.3 Flash

Amazon against Z.ai, compared on context, price, and attributed benchmark results.

Recorded profile verification October 2, 2026Individual provider fields may changeEvidence confidence: Medium — see receipts below

Amazon

Amazon Nova 2 Pro

Balanced

vs

Z.ai

GLM 5.3 Flash

Balanced · Open weights

AI model capability comparison
SpecificationAmazon Nova 2 ProGLM 5.3 Flash
ProviderAmazonZ.ai
TierBalancedBalanced
Context window1MWinner: 1.05M
Max outputNot verifiedUnverifiedNot verifiedUnverified
Input / 1M tokens$1.25Winner: $0.15
Output / 1M tokens$10Winner: $0.50
WeightsClosedOpen
ParametersNot verifiedUnverified320B total / 18B active (MoE)
Reasoning levelslow, medium, highlow, high, max
Modalitiestext, image, video, audiotext, image, video, file
LicenseNot verifiedUnverifiedMIT
API model idNot verifiedUnverifiedglm-5.3-flash
ReleasedDecember 2, 2025August 26, 2026
Artificial Analysis Intelligence Index · source date GLM 5.3 Flash: 2026-10-01Not verifiedUnverified42
Terminal-Bench 2.1 · source date GLM 5.3 Flash: 2026-08Not verifiedUnverified84.3
DeepSWE 1.1 · source date GLM 5.3 Flash: 2026-08Not verifiedUnverified63.4
Humanity's Last Exam · source date GLM 5.3 Flash: 2026-08Not verifiedUnverified55.3

Dates beside benchmark scores refer to the linked source’s publication or capture date unless that source explicitly states when it measured the result. A shared URL alone does not establish comparable runs; unverified setups are marked. Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Values we could not confirm from the provider are shown as “Not verified” rather than estimated.

Benchmark receipts

Where each score comes from, and how far it can be compared across models.

Pricing tiers

Amazon Nova 2 Pro: Bedrock Global Standard $1.25/$10 per MTok; single-region $1.375/$11. Global Flex/Batch $0.625/$5; Global Priority $2.1875/$17.50. These are native Nova 2.0 Pro meters in the September 30, 2026 offer file, not custom-model or training rates. No Pro cached-input meter is present in this snapshot. Price meters do not establish account access.

GLM 5.3 Flash: Z.ai API $0.15/$0.50 per MTok; cached input $0.03 and limited-time free cache storage. Hosted docs advertise 1M context and 128K output; the checkpoint config sets 1,048,576 context. An exact endpoint-specific numeric output ceiling is not separately verified. FlashX is a distinct $0.37/$1.25 endpoint; third-party prices require their own checks.

BalancedRecord checked October 2, 2026

Amazon Nova 2 Pro

Amazon's closed Nova 2 Pro preview accepts text, images, video and speech and generates text; its launch announcement specifies a one-million-token context.

Best for

  • AWS-native workloads
  • Multimodal
  • Long-context

Watch out

Preview access was announced for Nova Forge customers through their AWS account team. Current account access, a stable API model ID and a hard output cap remain unverified. Launch documentation names low/medium/high thinking; the current detailed thinking guide covers Lite only, so do not transfer its request rules to Pro. The October 1 Artificial Analysis 14-point Pro row is an estimate and is withheld. Omission from a current model list does not prove retirement.

BalancedOpen weightsRecord checked October 2, 2026

GLM 5.3 Flash

Z.ai's multimodal MIT-licensed 320B/18B MoE checkpoint and hosted Flash endpoint, with always-enabled reasoning and publisher coding/agent evaluations.

Best for

  • Cost-efficient long-context
  • Multimodal input
  • Coding agents

Watch out

The 320B weights require substantial hardware; memory depends on quantization, runtime and context. Effort low/high/max defaults to max. Flash is on Coding Plan with three times GLM-5.3 quota; FlashX is not on the plan. Half-point off-peak/weekend use applies to plan quota, not per-token API prices. Publisher evaluation generation budgets are not hosted API output caps.

When the cheaper one wins

GLM 5.3 Flash is cheaper on output at $0.50 per million tokens against $10 for Amazon Nova 2 Pro — about 20×. Use the cheaper tier for classification, extraction, summarisation, and any task where the expensive model’s extra score does not change the accepted output. The expensive one only pays if your hardest task actually fails on the cheap tier. This compares standard short-context token rates, not total cost per accepted task. Include input, cache, context tiers, schedules, retries and review in your pilot.

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Evidence confidence: Medium

How strong and complete the evidence behind this comparison is — not a prediction of which model is better.

  • Pricing verified on both sides — Input and output rates are verified for both models.
  • 3/5 core specs verified on both sides — Not published for at least one side: max output, parameter count.
  • No directly aligned benchmark setup — No benchmark has matching cited sources, source dates, units, effort and recorded run details on both models.
  • Verified within the last 90 days — Older of the two catalog checks was 24 days ago.
  • Both models carry source citations — Each side has at least two catalog sources on record.

Source receipts

Each catalog figure was checked against the provider or an independent second source on the date shown.

Related comparisons

Diving deeper on one model? Amazon Nova 2 Pro · GLM 5.3 Flash

Common questions

Amazon Nova 2 Pro vs GLM 5.3 Flash

Answered from the verified figures on this page rather than general guidance.

Is Amazon Nova 2 Pro or GLM 5.3 Flash cheaper for input?
GLM 5.3 Flash is cheaper at $0.15 per million input tokens, against $1.25 for Amazon Nova 2 Pro — roughly 8.3× the price. Estimate both input and output token volume for your workload. These are base rates; Amazon Nova 2 Pro: Bedrock Global Standard $1.25/$10 per MTok; single-region $1.375/$11. Global Flex/Batch $0.625/$5; Global Priority $2.1875/$17.50. These are native Nova 2.0 Pro meters in the September 30, 2026 offer file, not custom-model or training rates. No Pro cached-input meter is present in this snapshot. Price meters do not establish account access. GLM 5.3 Flash: Z.ai API $0.15/$0.50 per MTok; cached input $0.03 and limited-time free cache storage. Hosted docs advertise 1M context and 128K output; the checkpoint config sets 1,048,576 context. An exact endpoint-specific numeric output ceiling is not separately verified. FlashX is a distinct $0.37/$1.25 endpoint; third-party prices require their own checks.
Is Amazon Nova 2 Pro or GLM 5.3 Flash cheaper for output?
GLM 5.3 Flash is cheaper at $0.50 per million output tokens, against $10 for Amazon Nova 2 Pro — roughly 20× the price. Estimate both input and output token volume for your workload. These are base rates; Amazon Nova 2 Pro: Bedrock Global Standard $1.25/$10 per MTok; single-region $1.375/$11. Global Flex/Batch $0.625/$5; Global Priority $2.1875/$17.50. These are native Nova 2.0 Pro meters in the September 30, 2026 offer file, not custom-model or training rates. No Pro cached-input meter is present in this snapshot. Price meters do not establish account access. GLM 5.3 Flash: Z.ai API $0.15/$0.50 per MTok; cached input $0.03 and limited-time free cache storage. Hosted docs advertise 1M context and 128K output; the checkpoint config sets 1,048,576 context. An exact endpoint-specific numeric output ceiling is not separately verified. FlashX is a distinct $0.37/$1.25 endpoint; third-party prices require their own checks.
Which has the larger context window, Amazon Nova 2 Pro or GLM 5.3 Flash?
GLM 5.3 Flash accepts 1.05M tokens against 1M for Amazon Nova 2 Pro. This only matters if you routinely send very long documents or large codebases.
Do Amazon Nova 2 Pro and GLM 5.3 Flash support the same reasoning levels?
Amazon Nova 2 Pro exposes low, medium, high, while GLM 5.3 Flash exposes low, high, max.
Should I use Amazon Nova 2 Pro or GLM 5.3 Flash?
Both are classified in our balanced tier; this editorial grouping does not imply equal capability. Amazon Nova 2 Pro is a candidate for aws-native workloads; GLM 5.3 Flash is a candidate for cost-efficient long-context. Compare accuracy, tool reliability, latency and cost on representative tasks.
Can I self-host Amazon Nova 2 Pro or GLM 5.3 Flash?
GLM 5.3 Flash publishes open weights, but self-hosting and third-party provider access depend on the licence, hardware, serving support, and availability. Amazon Nova 2 Pro is a closed model whose supported access paths are controlled by its provider.

Next step

Choosing between them

The verified figures that separate this pair, computed from the catalog rather than restated boilerplate.

  • Input price: GLM 5.3 Flash costs $0.15 per 1M tokens versus $1.25 for Amazon Nova 2 Pro — a 8.3x difference at the headline tier.
  • Context: GLM 5.3 Flash takes 1.05M against 1M for Amazon Nova 2 Pro — only decisive if your prompts approach the smaller window.
  • Deployment: GLM 5.3 Flash publishes weights you can self-host; the other is API-only.
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