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LLM Model Comparison Table: Context and Prices by Snapshot

The dated model registry as a table: context, output ceiling, rates, long tiers, tokenizer status.
registry snapshot 2026-08-26 · 33 models · no live vendor requests, everCopy TSVResetSearch modelsAll familiesGPT-5.6GPT-5.5GPT-5.4GPT-5.3GPT-5.2GPT-5.1GPT-5GPT-4.1GPT-4oo-seriesOpenAIGPT-4 (legacy)GPT-3.5 (legacy)gpt-ossModel registry comparison, snapshot 2026-08-26
 Model Family Context Max out In / 1M Cached / 1M Out / 1M Tokenizer
 gpt-5.6-sol GPT-5.6 1,050,000 128,000 $4 $0.4 $20 o200k_base (exact)
 gpt-5.6-terra GPT-5.6 1,050,000 128,000 $2 $0.2 $12 o200k_base (exact)
 gpt-5.6-luna GPT-5.6 1,050,000 128,000 $0.2 $0.02 $1.2 o200k_base (exact)
 gpt-5.6-cyber GPT-5.6 400,000 128,000 $12.5 $1.25 $75 o200k_base (exact)
 gpt-5.5 GPT-5.5 1,050,000 128,000 $5 $0.5 $30 o200k_base (exact)
 gpt-5.5-pro GPT-5.5 1,050,000 128,000 $30 — $180 o200k_base (exact)
 gpt-5.4 GPT-5.4 1,050,000 128,000 $2.5 $0.25 $15 o200k_base (exact)
 gpt-5.4-mini GPT-5.4 400,000 128,000 $0.75 $0.075 $4.5 o200k_base (exact)
 gpt-5.4-nano GPT-5.4 400,000 128,000 $0.2 $0.02 $1.25 o200k_base (exact)
 gpt-5.4-pro GPT-5.4 1,050,000 128,000 $30 — $180 o200k_base (exact)
 gpt-5.3-codex GPT-5.3 400,000 128,000 $1.75 $0.175 $14 o200k_base (exact)
 gpt-5.2 GPT-5.2 400,000 128,000 $1.75 $0.175 $14 o200k_base (exact)
 gpt-5.2-pro GPT-5.2 400,000 128,000 $21 — $168 o200k_base (exact)
 gpt-5.1 GPT-5.1 400,000 128,000 $1.25 $0.125 $10 o200k_base (exact)
 gpt-5 GPT-5 400,000 128,000 $1.25 $0.125 $10 o200k_base (exact)
 gpt-5-mini GPT-5 400,000 128,000 $0.25 $0.025 $2 o200k_base (exact)
 gpt-5-nano GPT-5 400,000 128,000 $0.05 $0.005 $0.4 o200k_base (exact)
 gpt-5-pro GPT-5 400,000 272,000 $15 — $120 o200k_base (exact)
 gpt-4.1 GPT-4.1 1,047,576 32,768 $2 $0.5 $8 o200k_base (exact)
 gpt-4.1-mini GPT-4.1 1,047,576 32,768 $0.4 $0.1 $1.6 o200k_base (exact)
 gpt-4.1-nano GPT-4.1 1,047,576 32,768 $0.1 $0.025 $0.4 o200k_base (exact)
 gpt-4o GPT-4o 128,000 16,384 $2.5 $1.25 $10 o200k_base (exact)
 gpt-4o-mini GPT-4o 128,000 16,384 $0.15 $0.075 $0.6 o200k_base (exact)
 o3 o-series 200,000 100,000 $2 $0.5 $8 o200k_base (exact)
 o3-mini o-series 200,000 100,000 $1.1 $0.55 $4.4 o200k_base (exact)
 o3-pro o-series 200,000 100,000 $20 — $80 o200k_base (exact)
 o4-mini o-series 200,000 100,000 $1.1 $0.275 $4.4 o200k_base (exact)
 o1 o-series 200,000 100,000 $15 $7.5 $60 o200k_base (exact)
 chat-latest OpenAI 400,000 128,000 $5 $0.5 $30 o200k_base (exact)
 gpt-4-turbo GPT-4 (legacy) 128,000 4,096 $10 — $30 cl100k_base (exact)
 gpt-3.5-turbo GPT-3.5 (legacy) 16,385 4,096 $0.5 — $1.5 cl100k_base (exact)
 gpt-oss-120b gpt-oss 131,072 131,072 — — — o200k_base (exact)
 gpt-oss-20b gpt-oss 131,072 131,072 — — — o200k_base (exact)

- gpt-5.6-sol : Short/long-context tiers exist for this model; the vendor page does not publish the exact boundary; estimates split at 272K, the documented boundary for these families, and this estimate uses short-tier (standard) prices.
- gpt-5.6-terra : Short/long-context tiers exist for this model; the vendor page does not publish the exact boundary; estimates split at 272K, the documented boundary for these families, and this estimate uses short-tier (standard) prices.
- gpt-5.6-luna : Short/long-context tiers exist for this model; the vendor page does not publish the exact boundary; estimates split at 272K, the documented boundary for these families, and this estimate uses short-tier (standard) prices.
- chat-latest : Rolling alias: the underlying model and price change when OpenAI moves it.
- gpt-oss-120b : Open weights: API pricing depends on whoever hosts it; no single price is honest here.
- gpt-oss-20b : Open weights: API pricing depends on whoever hosts it; no single price is honest here.
- gpt-5.6-sol long tier: > 272K in: $8 / $30
- gpt-5.6-terra long tier: > 272K in: $4 / $18
- gpt-5.6-luna long tier: > 272K in: $0.4 / $1.8
- gpt-5.5 long tier: > 272K in: $10 / $45
- gpt-5.5-pro long tier: > 272K in: $60 / $270
- gpt-5.4 long tier: > 272K in: $5 / $22.5
- gpt-5.4-pro long tier: > 272K in: $60 / $270
LeftRightSide-by-side comparison of two selected models
 Field gpt-5-nano gpt-5-pro
 Context window 400,000 400,000
 Max output 128,000 272,000
 Input / 1M $0.05 $15
 Cached input / 1M $0.005 —
 Output / 1M $0.4 $120
 Encoding o200kbase o200kbase

Context delta + 0 tokens · max-output delta − 144,000 tokens (left − right).

- Every number comes from the dated registry snapshot ( 2026-08-26 ), prices curated from the vendor pricing page that day, context windows cross-checked against the installed tokenizer package. Pricing curated 2026-08-26 from developers.openai.com/api/docs/pricing (standard tier, USD per 1M tokens); context windows and max output cross-checked against the installed gpt-tokenizer 4.0.0 model catalog. Prices change; re-check the vendor page before relying on an estimate.
- Tokenizer status: every model in this registry has a shipped local encoding, so counts for them are exact. The "estimate" path other tools carry for non-registry vendors never appears here.
- This page makes no live vendor requests; it cannot check today’s price for you. Re-verify against the vendor page before relying on a number.
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snapshot 2026-08-26: 33 rows shown

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