OpenAI
·Released on Apr 24, 2026GPT-5.5 API Benchmarks, Pricing & Provider Data
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GPT-5.5 benchmark, API pricing, and provider data cover 735 API providers, with prices starting at $0.0030/request. GPT-5.5 free API options are available from 9 providers. The page also shows measured API speed and first-token latency.
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It feature...
Quality
#16of 100
72.0
LMSpeed score
Speed
46char/s
4.95 s
Cost
#163of 179
$0.0030/ 1M · 8:1 in:out
$0.0005 in · $0.0025 out
Category Performance
Observed-capability estimates with uncertainty reported separately from independent benchmark families.
- Coverage
- 7 / 8
- Methodology
- V3.0
#1Agents61.9RatedGlobal rank #94/4 Measured dimensions
80% interval: 56.8–67.0
planning63
deep_planning · gert_labs
tool use61
mcp_atlas · mcp_atlas / tau · tau2_bench / toolathlon · toolathlon
environment execution63.1
browsecomp · browse_comp / enterprise_ops_gym · aa_enterprise_ops_gym / gdpval_aa · benchlm_agentic_gdpval_aa / itbench · aa_itbench / osworld · os_world2 / osworld · os_world_verified / terminalbench · benchlm_agentic_terminal_bench2
recovery reliability60.5
apex_agents · apex_agents_aa / cyber_gym · cyber_gym / exploit_gym · exploit_gym / jobbench · job_bench / researchclaw · research_claw_bench
#2Coding59.8RatedGlobal rank #53/4 Measured dimensions
80% interval: 51.0–68.5
code generation61.5
scicode · scicode
repository engineering60.1
react_native_bench · react_native_evals / swe_pro · swe_pro / vibecode · vibe_code_bench
debugging testingPrior only
tooling quality57.6
terminalbench · benchlm_coding_terminal_bench2
#3Knowledge59.7Provisional1/4 Measured dimensions
80% interval: 45.7–73.7
broad knowledge59.7
aa_omniscience · aa_omniscience_index / benchlm_category_knowledge · benchlm_category_knowledge
professional knowledgePrior only
factualityPrior only
retrieval open bookPrior only
#4Reasoning59.2RatedGlobal rank #73/4 Measured dimensions
80% interval: 50.5–67.9
abstract logic56.7
arc_agi · arc_agi2
scientific causal63.5
critpt · critpt / gpqa · gpqa / hle · hle / hle · hle_no_tools
multistep constraintsPrior only
evidence verification57.5
lcr · lcr
#5Math56.9Provisional1/4 Measured dimensions
80% interval: 40.8–73.0
foundational mathPrior only
competition mathPrior only
proof frontier56.9
frontiermath · frontier_math / frontiermath · frontier_math_v2_tier4 / frontiermath · frontier_math_v2_tiers13
applied tool mathPrior only
#6Multimodal55.7Provisional1/4 Measured dimensions
80% interval: 39.6–71.8
perception ocrPrior only
document spatialPrior only
visual reasoning55.7
mmmu_pro · mmmu_pro
video actionPrior only
#7Instruction following54.6Provisional1/4 Measured dimensions
80% interval: 38.6–70.6
constraint followingPrior only
structured outputPrior only
novel instruction generalization54.6
ifbench · aa_if_bench
long multiturn instructionPrior only
No data:Multilingual
Specifications
Input and output token limits for this model, plus how it ranks on long-context understanding.
INPUT
1.1Mtokens
≈ 1.3K pages of text
OUTPUT
128Ktokens
8K128K1M4M
1.1M
Features
Rankings
Excels at
It's decent at
Falls behind in
Detailed scores
Updated: Aug 25, 2026Overall
undefined metric} other undefined metrics}}
Overall score72.0#16 / 100SEC-Bench Pro45.8#2 / 2
Overall
undefined metric} other undefined metrics}}
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Pricing
undefined metric} other undefined metrics}}
Input price$5.00/M#163 / 179Output price$30.00/M#169 / 179
Pricing
undefined metric} other undefined metrics}}
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Agents
V3.0undefined metric} other undefined metrics}} · Rated
Score61.9#980% interval56.8–67.04/4 Measured dimensionsAgentic score85.0#8 / 69Terminal-Bench 2.082.0#7 / 53
Agents
V3.0undefined metric} other undefined metrics}} · Rated
Dimensions and evidence
Planning & decomposition63
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
deep_planning · gert_labs · z 1.75 · q 1.00
Tool use61
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
mcp_atlas · mcp_atlas · z 0.19 · q 1.00
tau · tau2_bench · z 1.13 · q 1.00
toolathlon · toolathlon · z 0.77 · q 1.00
Environment & long-horizon execution63.1
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
browsecomp · browse_comp · z 0.38 · q 1.00
enterprise_ops_gym · aa_enterprise_ops_gym · z 0.32 · q 1.00
gdpval_aa · benchlm_agentic_gdpval_aa · z 0.94 · q 1.00
itbench · aa_itbench · z -0.09 · q 1.00
osworld · os_world2 · z -0.27 · q 1.00
osworld · os_world_verified · z 0.56 · q 1.00
terminalbench · benchlm_agentic_terminal_bench2 · z 1.40 · q 1.00
Recovery & completion reliability60.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
apex_agents · apex_agents_aa · z 0.75 · q 1.00
cyber_gym · cyber_gym · z 0.54 · q 1.00
exploit_gym · exploit_gym · z 0.05 · q 0.50
jobbench · job_bench · z 0.61 · q 1.00
researchclaw · research_claw_bench · z -0.32 · q 1.00
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
AA EnterpriseOps-GymV3 evidence
LMSpeed rank#5
Score46.6
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
Coding
V3.0undefined metric} other undefined metrics}} · Rated
Score59.8#580% interval51.0–68.53/4 Measured dimensionsSciCode56.1%#9 / 204Coding score48.4#58 / 81
Coding
V3.0undefined metric} other undefined metrics}} · Rated
Dimensions and evidence
Code generation61.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
scicode · scicode · z 1.39 · q 1.00
Repository engineering60.1
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
react_native_bench · react_native_evals · z 0.89 · q 1.00
swe_pro · swe_pro · z 0.33 · q 1.00
vibecode · vibe_code_bench · z 1.52 · q 1.00
Debugging & testingPrior only
Tool-assisted development & quality57.6
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
terminalbench · benchlm_coding_terminal_bench2 · z 1.02 · q 1.00
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Reasoning
V3.0undefined metric} other undefined metrics}} · Rated
Score59.2#780% interval50.5–67.93/4 Measured dimensionsGPQA93.5%#5 / 211HLE45.8%#12 / 208
Reasoning
V3.0undefined metric} other undefined metrics}} · Rated
Dimensions and evidence
Abstract logic56.7
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
arc_agi · arc_agi2 · z 0.71 · q 1.00
Scientific & causal reasoning63.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
critpt · critpt · z 1.05 · q 1.00
gpqa · gpqa · z 1.25 · q 1.00
hle · hle · z 1.00 · q 1.00
hle · hle_no_tools · z 0.00 · q 1.00
Multi-step constraintsPrior only
Evidence integration & verification57.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
lcr · lcr · z 0.65 · q 1.00
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Knowledge
V3.0undefined metric} other undefined metrics}} · Provisional
Score59.780% interval45.7–73.71/4 Measured dimensionsKnowledge score79.3#15 / 69GPQA-D93.6#4 / 31
Knowledge
V3.0undefined metric} other undefined metrics}} · Provisional
Dimensions and evidence
Broad knowledge59.7
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
aa_omniscience · aa_omniscience_index · z 0.83 · q 1.00
benchlm_category_knowledge · benchlm_category_knowledge · z 0.69 · q 1.00
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Artificial Analysis Intelligence IndexV3 evidence
LMSpeed rank#9
Score56.3
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
AA-Omniscience IndexV3 evidence
LMSpeed rank#14
Score20.5
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
AA-Omniscience Hallucination Rate
LMSpeed rank#22
Score89.0
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
Math
V3.0undefined metric} other undefined metrics}} · Provisional
Score56.980% interval40.8–73.01/4 Measured dimensionsMath score71.1#19 / 62FrontierMath (legacy)51.7#5 / 7
Math
V3.0undefined metric} other undefined metrics}} · Provisional
Dimensions and evidence
Foundational mathPrior only
Competition mathPrior only
Advanced proofs56.9
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
frontiermath · frontier_math · z -0.03 · q 0.58
frontiermath · frontier_math_v2_tier4 · z 1.19 · q 1.00
frontiermath · frontier_math_v2_tiers13 · z 0.71 · q 1.00
Applied & tool-assisted mathPrior only
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
FrontierMath (legacy)V3 evidence
LMSpeed rank#5
Score51.7
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
FrontierMath v2 (Tiers 1-3)V3 evidence
LMSpeed rank#4
Score51.7
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
FrontierMath v2 (Tier 4)V3 evidence
LMSpeed rank#6
Score35.4
Sourcebenchlm.ai
UpdatedAug 25, 2026
Confidence3
Multilingual
V3.0undefined metric} other undefined metrics}} · No data
No data80% interval30.8–69.20/4 Measured dimensions
Multilingual
V3.0undefined metric} other undefined metrics}} · No data
Dimensions and evidence
Cross-language understandingPrior only
Multilingual generationPrior only
Reasoning transferPrior only
Low-resource robustnessPrior only
Multimodal
V3.0undefined metric} other undefined metrics}} · Provisional
Score55.780% interval39.6–71.81/4 Measured dimensionsMultimodal Grounded score68.2#18 / 44MMMU-Pro81.2#7 / 31
Multimodal
V3.0undefined metric} other undefined metrics}} · Provisional
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoning55.7
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
mmmu_pro · mmmu_pro · z 0.69 · q 1.00
Video & grounded actionPrior only
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
Instruction following
V3.0undefined metric} other undefined metrics}} · Provisional
Score54.680% interval38.6–70.61/4 Measured dimensionsAA-IFBench75.9#14 / 84
Instruction following
V3.0undefined metric} other undefined metrics}} · Provisional
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalization54.6
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
ifbench · aa_if_bench · z 0.34 · q 1.00
Multi-turn & long instructionsPrior only
Benchmark
LMSpeed rank
Score
Source
Updated
Confidence
OpenRouter endpoints
7 endpointsThird-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.
| Provider endpoint | Input | Output | 1d uptime | 30m latency | 30m throughput | Context / output |
|---|---|---|---|---|---|---|
OpenAI openai/flex | $2.50/M | $15/M | 100% | — | — | undefined tokens / undefined tokens |
Azure azure/eu | $5.50/M | $33/M | 100% | — | — | undefined tokens / undefined tokens |
Azure azure | $5/M | $30/M | 100.0% | — | — | undefined tokens / undefined tokens |
Azure azure/us | $5.50/M | $33/M | 99.9% | — | — | undefined tokens / undefined tokens |
OpenAI openai | $5/M | $30/M | 99.3% | — | — | undefined tokens / undefined tokens |
Amazon Bedrock amazon-bedrock/us-east-1 | $5.50/M | $33/M | — | — | — | undefined tokens / undefined tokens |
OpenAI openai/fast | $12.50/M | $75/M | — | — | — | undefined tokens / undefined tokens |
Pricing Comparison
Compare GPT-5.5 API pricing across 726 providers. Prices range from $0.0030/request to $749250.00/M. Crond offers the lowest rate at $0.0030/request. 9 providers offer free API credits or a free tier.
Showing 20 model IDs of 209.
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Frequently Asked Questions
- What benchmark data does GPT-5.5 include?
- LMSpeed shows GPT-5.5 benchmark context, API price, output speed, first-token latency, and provider data across 735 providers when those signals are available.
- What is the GPT-5.5 API price?
- GPT-5.5 has pricing from 735 providers, ranging from $0.0030/request to $749250.00/M. Crond has the lowest listed price.
- What does the GPT-5.5 API pricing table include?
- The GPT-5.5 API pricing table compares 735 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
- Which provider has the cheapest GPT-5.5 API pricing?
- Crond currently has the lowest listed GPT-5.5 price at $0.0030/request across 735 providers.
- Can I compare GPT-5.5 API price and speed together?
- Yes. LMSpeed shows GPT-5.5 API price, output speed, first-token latency, and provider health on the same page so you can compare cost and performance together.
- Is GPT-5.5 API free?
- Yes, GPT-5.5 free API options are available through 9 providerundefined other undefined} on LMSpeed, including 兔子API, 兔子API, 兔子API, Moyanjdc API, Moyanjdc API. These providers offer free API credits or a free tier with no per-token charges.
- Where can I get GPT-5.5 free API access?
- LMSpeed currently lists 9 free API providerundefined other undefined} for GPT-5.5: 兔子API, 兔子API, 兔子API, Moyanjdc API, Moyanjdc API. Check each provider row before using it because free tier limits can change.