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Van Data Team

text model comparison

GPT-5.6 Sol vs GPT-6 Cyber

GPT-5.6 Sol and GPT-6 Cyber are both current text models, from OpenAI. GPT-5.6 Sol is 80% cheaper per 1M input tokens than GPT-6 Cyber, $4 vs $20. In OpenAI's GPT-6 Cyber system card, GPT-5.6 Sol scores 78.5% on ExploitBench (mean capability score, normalized to arbitrary code execution) and GPT-6 Cyber 100.0%. Both accept 1,050,000 tokens of context.

Lower price per 1M input tokens
GPT-5.6 Sol$4 against $20
Newer release
GPT-6 CyberNov 2026 against Jul 2026

Data verified November 6, 2026 · Dataset 2026-11-06

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Side by side

GPT-5.6 Sol and GPT-6 Cyber, line by line

Prices in effect today, compared at the same tier wherever both list one. The better value in each row is highlighted.

FactGPT-5.6 SolGPT-6 Cyber
Price
Price per 1M input tokens$4 (better)$20
Price per 1M output tokens$20 (better)$100
Independent benchmarks
Arena Text1485 Elo (#12 of 52)Not measured
GPQA Diamond93.5% (#12 of 41)Not measured
FrontierMath Tiers 1-3 (v2)89.1% (#7 of 41)Not measured
SimpleQA Verified69.7% (#8 of 38)Not measured
Specs
ProviderOpenAIOpenAI
Release dateJuly 9, 2026November 5, 2026
AccessAPI onlylimited access
Context window1,050,000 tokens1,050,000 tokens
Max output128,000 tokens128,000 tokens
Inputtext, imagetext, image
Outputtexttext

No independent benchmark has scored both models yet. Each rank counts the current models scored on that benchmark.

Scores:Arena · 2026-11-03Epoch AI · 2026-11-03

Provider results

What the labs report

Results tables a lab published with one of its models, where it lists both GPT-5.6 Sol and GPT-6 Cyber. These are the lab's own figures, not independent measurements, and each table is read on its own: labs run benchmarks with different harnesses and budgets.

OpenAI, GPT-6 Cyber system card, November 5, 2026OpenAI · 2026-11-06

BenchmarkGPT-5.6 SolGPT-6 Cyber
ExploitBenchmean capability score, normalized to arbitrary code execution78.5%100.0% (better)
SEC-Bench Propass@179.1%87.0% (better)
SRE-Benchall six objectives, pass@155.9%92.8% (better)

OpenAI's system card results at the highest reasoning budget it tested. The GPT-6 Astra and GPT-5.6 Sol scores match the runs OpenAI's launch post labels Daybreak Blue, the access tier without their cyber guardrails. OpenAI warns that ExploitBench's historical vulnerabilities may have been seen in training. ExploitGym, where the system card gives the same scores, is in the launch post table. Left out here: evaluations OpenAI built itself (ExploitBench Internal Port, ExploitGym Hardened, ExpertSWE) and Irregular's private suites.

OpenAI, GPT-6 Cyber launch post, November 5, 2026OpenAI · 2026-11-06

BenchmarkGPT-5.6 SolGPT-6 Cyber
ExploitGymstrict supplied-vulnerability pass@130.3%48.5% (better)

OpenAI's chart from the GPT-6 Cyber announcement. GPT-6 Astra and GPT-5.6 Sol ran with Daybreak Blue access; with its standard safeguards GPT-6 Astra refuses these tasks and scores 0%. Left out here: RemoteExploitBench and the web pentesting evaluation, which OpenAI built itself, the honeypot evaluation, where lower is better, and SRE-Bench, which is in the system card table.

Charts

Against every current text model

Where GPT-5.6 Sol and GPT-6 Cyber land among the current models of their task, on every independent benchmark, on price and on context.

Where each stands

Only GPT-5.6 Sol has a current Arena Text score: #12 of 52. Each bar is the share of current models it beats.

GPT-5.6 Sol and GPT-6 Cyber among the current text models, one row per benchmark, price and context window.

Independent benchmarks

Arena Text

GPT-5.6 Sol:#12of 52

1,485 Elo · ahead of 78%

GPT-6 Cyber: Not scored

GPQA Diamond

GPT-5.6 Sol:#12of 41

93.5% · ahead of 73%

GPT-6 Cyber: Not scored

FrontierMath Tiers 1-3 (v2)

GPT-5.6 Sol:#7of 41

89.1% · ahead of 85%

GPT-6 Cyber: Not scored

SimpleQA Verified

GPT-5.6 Sol:#8of 38

69.7% · ahead of 78%

GPT-6 Cyber: Not scored

Price and context

Price per 1M input tokens

GPT-5.6 Sol:#46of 58

$4 · cheaper than 18%

GPT-6 Cyber:#58of 58

$20 · cheaper than 0%

Price per 1M output tokens

GPT-5.6 Sol:#46of 58

$20 · cheaper than 18%

GPT-6 Cyber:#58of 58

$100 · cheaper than 0%

Context window

GPT-5.6 Sol:#1of 67

1.05M tokens · longer than 85%

GPT-6 Cyber:#1of 67

1.05M tokens · longer than 85%

Scores fromArena · 2026-11-03Epoch AI · 2026-11-03

Quality against price

Arena Text · measured October 28, 2026

GPT-5.6 Sol scores 1,485 at $8 (blended price per 1M tokens). The line joins the current models no other beats on both price and Arena Text score; hover any point to name it.

Quality against priceArena Text score against price for 44 text models, GPT-5.6 Sol and GPT-6 Cyber marked.1,2501,3001,3501,4001,4501,5001,550$0.30$1$3$10MOST ATTRACTIVE QUADRANTMedian price $3Median 1,476Blended price per 1M tokens (3 input : 1 output), log scaleArena Text (Elo)GPT-5.6 Sol
Quality against price: the data
Arena Text score against price for 44 text models, GPT-5.6 Sol and GPT-6 Cyber marked.
ModelProviderBlended price per 1M tokensArena Text (Elo)
Gemini 4 CarbonGoogle$41,528
Gemini 4 ArgonGoogle$41,520
Claude Opus 5.5Anthropic$81,509
Muse WonderMeta$81,507
Claude Fable 5Anthropic$201,504
Claude Fable 5.1Anthropic$201,504
Gemini 3.8 FlashGoogle$1.501,496
Muse Spark 1.3Meta$21,495
Claude Opus 5Anthropic$101,492
Kimi K3Moonshot Kimi$61,488
GPT-5.6 SolOpenAI$81,485
Gemini 3.6 FlashGoogle$31,483
GPT-5.5OpenAI$111,482
Claude Opus 4.8Anthropic$101,482
Qwen3.8-MaxAlibaba Qwen$31,482
GPT-6.1 SolOpenAI$41,481
GLM-5.3Z.ai$2.151,481
MiMo-V2.6-ProXiaomi MiMo$0.541,480
Claude Sonnet 5.5Anthropic$41,477
GLM-5.3-FlashZ.ai$0.241,477
GPT-6 AstraOpenAI$201,476
DeepSeek-V4.1-FlashDeepSeek$0.521,476
GPT-5.4OpenAI$5.631,475
Gemini 3 Flash PreviewGoogle$1.131,473
Grok 4.20xAI$1.561,472
GPT-5.6 TerraOpenAI$4.501,467
Grok 4.5xAI$31,465
DeepSeek-V4-ProDeepSeek$1.981,465
Claude Sonnet 5Anthropic$41,462
GPT-6 SolOpenAI$41,458
Gemini 3.5 Flash-LiteGoogle$0.851,456
Grok 4.6xAI$31,455
GPT-5.6 LunaOpenAI$0.451,453
MiMo-V2.6-FlashXiaomi MiMo$0.181,448
Step 5 PreviewStepFun$1.431,448
Grok 4.3xAI$1.561,442
GPT-6 LunaOpenAI$0.201,441
Grok 4.7xAI$31,441
Mistral Large 4Mistral AI$1.051,432
Claude Haiku 5.5Anthropic$0.201,425
GPT-4.1OpenAI$3.501,415
Solar Pro 4Upstage$0.521,388
GPT-4.1 miniOpenAI$0.701,383
GPT-4.1 nanoOpenAI$0.181,322

Cost

What each costs

Example workloads at each provider's listed rates, then every other rate either one lists. The cheaper figure in each row is highlighted.

The same work, priced

For 10M input and 2M output tokens, GPT-6 Cyber costs 5.0 times as much as GPT-5.6 Sol, at each provider's listed rates.

What GPT-5.6 Sol and GPT-6 Cyber cost for the same work, at the rates each provider lists.

  • 10M input and 2M output tokens

    GPT-6 Cyber costs 5.0× as much

    GPT-5.6 Sol
    $80
    GPT-6 Cyber
    $400

  • The same, with 9M of the input tokens cached

    GPT-6 Cyber costs 5.0× as much

    GPT-5.6 Sol
    $47.60
    GPT-6 Cyber
    $238
Workload or rateGPT-5.6 SolGPT-6 Cyber
Example workloads
10M input and 2M output tokens$80 (better)$400
The same, with 9M of the input tokens cached$47.60 (better)$238
Other listed rates
1M input tokens, cached$0.40 (better)$2

Your own bill will differ. These figures use list prices and example workloads. The AI Model Cost Audit reviews your real usage, shortlists models that score as well for each task for less, and estimates the savings.

Launch price $100, regular price $150

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Verdict

When to choose each

GPT-5.6 Sol

Where it leads

  • Lower input and output prices, $4 and $20 vs $20 and $100 per 1M tokens
  • Cheaper cached input, $0.40 vs $2 per 1M tokens

Best for

  • Frontier capability evaluations for complex API workflows
  • Long-horizon coding and research agents that use computer use or MCP tools

Watch out for

  • Not in the pinned LiveBench snapshot; its independent scores here come from Epoch AI's own GPQA Diamond, FrontierMath and SimpleQA Verified runs
Full GPT-5.6 Sol profile

GPT-6 Cyber

Where it leads

No measured lead over GPT-5.6 Sol in this data.

Best for

  • Security teams approved for Daybreak Red that develop and validate exploits in authorized tests
  • Vulnerability research and patch validation across large codebases such as browsers and kernels

Watch out for

  • Limited access: OpenAI is rolling it out through the API and Codex to select approved Daybreak Red customers first, with identity verification, single sign-on, multi-factor authentication and API IP allowlisting
  • OpenAI rates it Critical in cybersecurity under its Preparedness Framework, like GPT-6 Astra and up from High for GPT-5.6 Cyber, and adds checks that block high-risk activity against critical systems
  • It does not beat GPT-6 Astra at general coding (82.95% against 83.24% on OpenAI's internal ExpertSWE), and on Irregular's FrontierCyber it solved 90 of 288 challenges against 96 for Astra; no independent benchmark score is recorded here yet
Full GPT-6 Cyber profile

From benchmark to production

Building on GPT-5.6 Sol or GPT-6 Cyber?

Public scores rarely hold on your own data. We test both models on your real tasks, then build the agent or pipeline around the one that wins.

AI Model Cost AuditLaunch price $100, regular price $150What the audit includes

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FAQ

GPT-5.6 Sol vs GPT-6 Cyber FAQ

Which is cheaper, GPT-5.6 Sol or GPT-6 Cyber?

GPT-5.6 Sol is 80% cheaper per 1M input tokens than GPT-6 Cyber, $4 vs $20. For 10M input and 2M output tokens, GPT-5.6 Sol costs $80 and GPT-6 Cyber $400 at standard rates.

Which is cheaper with prompt caching, GPT-5.6 Sol or GPT-6 Cyber?

GPT-5.6 Sol charges $0.40 per 1M cached input tokens, 90% below its standard input rate, and GPT-6 Cyber $2, 90% below. With 9M of 10M input tokens cached and 2M output tokens, GPT-5.6 Sol costs $47.60 and GPT-6 Cyber $238.

How do GPT-5.6 Sol and GPT-6 Cyber compare in OpenAI's own results?

In the GPT-6 Cyber system card (November 5, 2026), GPT-6 Cyber leads on ExploitBench (mean capability score, normalized to arbitrary code execution), 100.0% to 78.5%; GPT-6 Cyber leads on SEC-Bench Pro (pass@1), 87.0% to 79.1%; GPT-6 Cyber leads on SRE-Bench (all six objectives, pass@1), 92.8% to 55.9%. These are OpenAI's figures, not independent measurements.

Which has the larger context window, GPT-5.6 Sol or GPT-6 Cyber?

Both accept 1,050,000 tokens of context. Both return up to 128,000 tokens per response.

Further reading

More on GPT-5.6 Sol and GPT-6 Cyber

Articles on GPT-5.6 Sol and GPT-6 Cyber

Related comparisons

Production evaluation

Choosing between GPT-5.6 Sol and GPT-6 Cyber?

Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.

  • A head-to-head evaluation on your real workload
  • Routing between models by cost and difficulty
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