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AI Choice Engine

Model comparison

Amazon Nova 2 Pro vs GPT-6 Sol

Amazon against OpenAI, compared on context, price, and verified benchmark results.

Catalog record checked September 26, 2026Individual provider fields may changeEvidence confidence: High — see receipts below

Amazon

Amazon Nova 2 Pro

Balanced

vs

OpenAI

GPT-6 Sol

Balanced

AI model capability comparison
SpecificationAmazon Nova 2 ProGPT-6 Sol
ProviderAmazonOpenAI
TierBalancedBalanced
Context window1MWinner: 1.05M
Max outputNot verifiedUnverified128K
Input / 1M tokensWinner: $1.25$2
Output / 1M tokens$10$10
WeightsClosedClosed
ParametersNot disclosedUnverifiedGPT-6 mid-price tier
Reasoning levelslow, medium, highnone, low, medium, high, xhigh, max
Modalitiestext, image, video, audiotext, image
API model idamazon.nova-2-pro-preview-20251202-v1:0gpt-6-sol
ReleasedDecember 2, 2025September 22, 2026
Artificial Analysis Intelligence Index [medium] (2026-09-26)14.2Not verifiedUnverified
Artificial Analysis Intelligence Index [max] (2026-09-26)Not verifiedUnverified47.5
DeepSWE 1.1 [max] (2026-09-22)Not verifiedUnverified68.8
OSWorld 2.0 (offline) [xhigh] (2026-09-22)Not verifiedUnverified60.5
Terminal-Bench 4.0 [max] (2026-09-26)Not verifiedUnverified43.9

Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Bold indicates the better figure where one is objectively better. 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.

  • 2026-09-26
    Artificial Analysis Terminal-Bench 4.0 (independent AA run, part of Intelligence Index v4.3.2)

    Agentic terminal work: long multi-step tasks executed in a sandboxed shell environment.

    Comparable with caveatNOT comparable with Terminal-Bench 2.x or 3.0 — 4.0 uses a new, non-overlapping task set. Within 4.0, scores from different harnesses (tbench.ai agent entries vs Artificial Analysis runs) are not interchangeable.

  • 2026-09-26
    Artificial Analysis

    Composite index blending reasoning, knowledge, and coding evals into one 0–100 score.

    Comparable with caveatOnly same-version scores are comparable. v4.3.2 was rebaselined (the top score fell from 66 on v4.1.1 to ~58), so v4.1.1 figures must not be compared with v4.3.2 figures — check measuredAt.

  • 2026-09-22
    OpenAI — Introducing GPT-6 Sol and Luna (vendor)

    Agentic software engineering: pass@1 on real repo tasks with reported cost per completed task.

    Directly comparable

Pricing tiers

Amazon Nova 2 Pro: Standard tier $1.25/$10.00 per MTok on the cross-region global endpoint (Bedrock offer file published 2026-09-26); single-region +10% ($1.375/$11). Flex and batch $0.625/$5.00 global; Priority $2.19/$17.50. No cached-input price is published for Pro. Still preview (id amazon.nova-2-pro-preview-20251202-v1:0, secondary source).

GPT-6 Sol: Replaces GPT-5.6 Sol at 50% of its $4/$20 promo price. Cached input $0.20/MTok; cache writes $2.50 (1.25x). Above 272K input the whole request bills $4/$15 ($0.40 cached). Batch/Flex $1/$5; Fast mode $4/$20. Knowledge cutoff Apr 20 2026. Launched in the API, ChatGPT Work and Codex the same day.

BalancedRecord checked September 26, 2026

Amazon Nova 2 Pro

Nova 2 Pro is Amazon's closed Bedrock flagship with a 1M-token context and multimodal input.

Best for

  • AWS-native workloads
  • Multimodal
  • Long-context

Watch out

Bedrock-only (closed) and still preview — pricing may change, and Amazon reportedly moved most Nova models to maintenance mode without naming 2 Pro among the survivors (secondary report), so do not assume GA. Nova Premier and the original Sonic reached end of life on 2026-09-14; Canvas and Reel follow on 2026-09-30.

BalancedRecord checked September 26, 2026

GPT-6 Sol

GPT-6 Sol brings GPT-6 Astra's training advances to OpenAI's mid-priced tier — OpenAI claims roughly half GPT-5.6 Sol's factual-error rate at half its price, with a 1.05M-token context.

Best for

  • Default OpenAI production model
  • Agentic coding
  • Long-context knowledge work

Watch out

Brand-new (2026-09-22): the DeepSWE figure is vendor-reported and it is not yet on the independent boards; long prompts above 272K bill $4/$15 for the whole request.

When the cheaper one wins

Both charge $10 per million output tokens at standard rates, so output price is not the split. Prefer the row whose “best for” line matches the job, then confirm the live vendor rate.

Run the model picker

Evidence confidence: High

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.
  • 1 shared named benchmark with differing scores — Measured on: Artificial Analysis Intelligence Index.
  • Verified within the last 90 days — Newest catalog check was 2 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 · GPT-6 Sol

Common questions

Amazon Nova 2 Pro vs GPT-6 Sol

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

Is Amazon Nova 2 Pro or GPT-6 Sol cheaper for input?
Amazon Nova 2 Pro is cheaper at $1.25 per million input tokens, against $2 for GPT-6 Sol — roughly 1.6× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate. These are base rates; Amazon Nova 2 Pro has tiered pricing: Standard tier $1.25/$10.00 per MTok on the cross-region global endpoint (Bedrock offer file published 2026-09-26); single-region +10% ($1.375/$11). Flex and batch $0.625/$5.00 global; Priority $2.19/$17.50. No cached-input price is published for Pro. Still preview (id amazon.nova-2-pro-preview-20251202-v1:0, secondary source). GPT-6 Sol has tiered pricing: Replaces GPT-5.6 Sol at 50% of its $4/$20 promo price. Cached input $0.20/MTok; cache writes $2.50 (1.25x). Above 272K input the whole request bills $4/$15 ($0.40 cached). Batch/Flex $1/$5; Fast mode $4/$20. Knowledge cutoff Apr 20 2026. Launched in the API, ChatGPT Work and Codex the same day.
Is Amazon Nova 2 Pro or GPT-6 Sol cheaper for output?
Both cost $10 per million output tokens at standard rates, so output price is not a deciding factor between them.
Which has the larger context window, Amazon Nova 2 Pro or GPT-6 Sol?
GPT-6 Sol 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 GPT-6 Sol support the same reasoning levels?
Amazon Nova 2 Pro exposes low, medium, high, while GPT-6 Sol exposes none, low, medium, high, xhigh, max.
Should I use Amazon Nova 2 Pro or GPT-6 Sol?
Both sit in the balanced tier, so the choice usually comes down to price and context rather than capability. Amazon Nova 2 Pro suits aws-native workloads; GPT-6 Sol suits default openai production model.

Next step

Choosing between them

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

  • Input price: Amazon Nova 2 Pro costs $1.25 per 1M tokens versus $2 for GPT-6 Sol — a 1.6x difference at the headline tier.
  • Context: GPT-6 Sol takes 1.05M against 1M for Amazon Nova 2 Pro — only decisive if your prompts approach the smaller window.
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