text model comparison
Claude Haiku 5.5 vs GPT-5.5
Claude Haiku 5.5 and GPT-5.5 are both current text models, from Anthropic and OpenAI. Claude Haiku 5.5 is 98% cheaper per 1M input tokens than GPT-5.5, $0.10 vs $5. On GPQA Diamond, Claude Haiku 5.5 scores 89.6% and GPT-5.5 90.7% (Epoch AI, measured October 12, 2026). GPT-5.5 has the larger context window, 1,050,000 vs 1,000,000 tokens.
- Higher GPQA Diamond
- GPT-5.590.7% against 89.6%
- Lower price per 1M input tokens
- Claude Haiku 5.5$0.10 against $5
- Longer context window
- GPT-5.51.05M tokens against 1M tokens
- Newer release
- Claude Haiku 5.5Oct 2026 against Apr 2026
Data verified October 12, 2026 · Dataset 2026-10-28
Side by side
Claude Haiku 5.5 and GPT-5.5, line by line
Prices in effect today, compared at the same tier wherever both list one. The better value in each row is highlighted.
| Fact | Claude Haiku 5.5 | GPT-5.5 |
|---|---|---|
| Price | ||
| Price per 1M input tokens | $0.10 (better) | $5 |
| Price per 1M output tokens | $0.50 (better) | $30 |
| Independent benchmarks | ||
| GPQA Diamond | 89.6% (#29 of 40) | 90.7% (#23 of 40) (better) |
| FrontierMath Tiers 1-3 (v2) | 75.1% (#16 of 40) | 85.3% (#11 of 40) (better) |
| SimpleQA Verified | 23.8% (#33 of 36) | 63% (#13 of 36) (better) |
| Arena Text | Not measured | 1482 Elo (#14 of 49) |
| LiveBench Overall | Not measured | 79.91 points (#1 of 5) |
| Specs | ||
| Provider | Anthropic | OpenAI |
| Release date | October 7, 2026 | April 23, 2026 |
| Access | API only | API only |
| Context window | 1,000,000 tokens | 1,050,000 tokens |
| Max output | 128,000 tokens | 128,000 tokens |
| Input | text, image | text, image |
| Output | text | text |
Scores:Epoch AI · 2026-10-12Arena · 2026-10-12LiveBench · 2026-06-25
Charts
Against every current text model
Where Claude Haiku 5.5 and GPT-5.5 land among the current models of their task, on every independent benchmark, on price and on context.
Where each stands
On GPQA Diamond, Claude Haiku 5.5 ranks #29 and GPT-5.5 #23 of 40 current models. Each bar is the share of current models it beats: on score, price and context.
Independent benchmarks
Arena Text
Claude Haiku 5.5: Not scored
GPT-5.5:#14of 49
1,482 Elo · ahead of 71%
GPQA Diamond
Claude Haiku 5.5:#29of 40
89.6% · ahead of 28%
GPT-5.5:#23of 40
90.7% · ahead of 44%
FrontierMath Tiers 1-3 (v2)
Claude Haiku 5.5:#16of 40
75.1% · ahead of 62%
GPT-5.5:#11of 40
85.3% · ahead of 74%
SimpleQA Verified
Claude Haiku 5.5:#33of 36
23.8% · ahead of 9%
GPT-5.5:#13of 36
63% · ahead of 66%
LiveBench Overall
Claude Haiku 5.5: Not scored
GPT-5.5:#1of 5
79.9 · ahead of 100%
Price and context
Price per 1M input tokens
Claude Haiku 5.5:#1of 51
$0.10 · cheaper than 96%
GPT-5.5:#45of 51
$5 · cheaper than 8%
Price per 1M output tokens
Claude Haiku 5.5:#3of 51
$0.50 · cheaper than 92%
GPT-5.5:#47of 51
$30 · cheaper than 8%
Context window
Claude Haiku 5.5:#28of 66
1M tokens · longer than 22%
GPT-5.5:#1of 66
1.05M tokens · longer than 86%
Quality against price
GPT-5.5 scores 1,482 at $11.25 (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 price: the data
| Model | Provider | Blended price per 1M tokens | Arena Text (Elo) |
|---|---|---|---|
| Gemini 4 Argon | $4 | 1,525 | |
| Claude Opus 5.5 | Anthropic | $8 | 1,507 |
| Claude Fable 5 | Anthropic | $20 | 1,504 |
| Claude Fable 5.1 | Anthropic | $20 | 1,501 |
| Gemini 3.8 Flash | $1.50 | 1,497 | |
| Muse Spark 1.3 | Meta | $2 | 1,494 |
| Claude Opus 5 | Anthropic | $10 | 1,490 |
| Kimi K3 | Moonshot Kimi | $6 | 1,488 |
| Gemini 3.7 Flash | $1.50 | 1,486 | |
| GPT-5.6 Sol | OpenAI | $8 | 1,485 |
| GPT-6.1 Sol | OpenAI | $4 | 1,484 |
| Qwen3.8-Max | Alibaba Qwen | $3 | 1,483 |
| GPT-5.5 | OpenAI | $11 | 1,482 |
| Gemini 3.6 Flash | $3 | 1,482 | |
| Claude Opus 4.8 | Anthropic | $10 | 1,481 |
| MiMo-V2.6-Pro | Xiaomi MiMo | $0.54 | 1,480 |
| GLM-5.3 | Z.ai | $2.15 | 1,478 |
| Claude Sonnet 5.5 | Anthropic | $4 | 1,476 |
| GPT-5.4 | OpenAI | $5.63 | 1,475 |
| GPT-6 Astra | OpenAI | $20 | 1,475 |
| DeepSeek-V4.1-Flash | DeepSeek | $0.52 | 1,475 |
| GLM-5.3-Flash | Z.ai | $0.24 | 1,475 |
| Gemini 3 Flash Preview | $1.13 | 1,473 | |
| Grok 4.20 | xAI | $1.56 | 1,472 |
| GPT-5.6 Terra | OpenAI | $4.50 | 1,466 |
| Grok 4.5 | xAI | $3 | 1,466 |
| DeepSeek-V4-Pro | DeepSeek | $1.98 | 1,465 |
| Claude Sonnet 5 | Anthropic | $4 | 1,461 |
| GPT-6 Sol | OpenAI | $4 | 1,456 |
| Gemini 3.5 Flash-Lite | $0.85 | 1,455 | |
| Grok 4.6 | xAI | $3 | 1,454 |
| GPT-5.6 Luna | OpenAI | $0.45 | 1,452 |
| MiMo-V2.6-Flash | Xiaomi MiMo | $0.18 | 1,451 |
| GPT-6 Luna | OpenAI | $0.20 | 1,443 |
| Grok 4.7 | xAI | $3 | 1,443 |
| Grok 4.3 | xAI | $1.56 | 1,442 |
| Mistral Large 4 | Mistral AI | $2.06 | 1,429 |
| GPT-4.1 | OpenAI | $3.50 | 1,415 |
| Solar Pro 4 | Upstage | $0.52 | 1,386 |
| GPT-4.1 mini | OpenAI | $0.70 | 1,383 |
| GPT-4.1 nano | OpenAI | $0.18 | 1,322 |
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-5.5 costs 55 times as much as Claude Haiku 5.5, at each provider's listed rates.
10M input and 2M output tokens
GPT-5.5 costs 55× as much
- Claude Haiku 5.5
- $2
- GPT-5.5
- $110
The same, with 9M of the input tokens cached
GPT-5.5 costs 58× as much
- Claude Haiku 5.5
- $1.19
- GPT-5.5
- $69.50
| Workload or rate | Claude Haiku 5.5 | GPT-5.5 |
|---|---|---|
| Example workloads | ||
| 10M input and 2M output tokens | $2 (better) | $110 |
| The same, with 9M of the input tokens cached | $1.19 (better) | $69.50 |
| The same, through the batch API | $1 | Not listed |
| Other listed rates | ||
| 1M input tokens, cached | $0.01 (better) | $0.50 |
| 1M input tokens, 5-minute cache write | $0.125 | Not listed |
| 1M input tokens, 1-hour cache write | $0.20 | Not listed |
| 1M input tokens, batch | $0.05 | Not listed |
| 1M output tokens, batch | $0.25 | Not listed |
| 1M input tokens, prompts over 100K tokens | $0.50 | Not listed |
| 1M output tokens, prompts over 100K tokens | $2.50 | Not listed |
Verdict
When to choose each
Claude Haiku 5.5
Where it leads
- Lower input and output prices, $0.10 and $0.50 vs $5 and $30 per 1M tokens
- Cheaper cached input, $0.01 vs $0.50 per 1M tokens
- Batch pricing, $0.05 input and $0.25 output per 1M tokens
Best for
- High-volume classification, extraction and routing under the 100,000-token line
- Cost-sensitive fan-out steps where a frontier model is overkill
Watch out for
- Priced by prompt length, and it is a cliff rather than a taper: a request whose prompt passes 100,000 tokens is billed at $0.50 input and $2.50 output for the whole request, five times the short rate
- Cache reads and cache writes both count toward that 100,000-token measurement, so a large cached prefix can tip a request into the higher band on its own
- It is the only current Claude model whose 1M window is not priced uniformly; every other 4.6-and-later model bills a 900k request at the same rate as a 9k one
GPT-5.5
Where it leads
- Higher GPQA Diamond score, 90.7% vs 89.6%
- Higher FrontierMath Tiers 1-3 (v2) score, 85.3% vs 75.1%
- Higher SimpleQA Verified score, 63% vs 23.8%
- Larger context window 1,050,000 vs 1,000,000 tokens
Best for
- High-capability API evaluations with long context
Watch out for
- Prompts above the provider long-context threshold use higher token rates; validate the selected reasoning effort against production cost
From benchmark to production
Building on Claude Haiku 5.5 or GPT-5.5?
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.
FAQ
Claude Haiku 5.5 vs GPT-5.5 FAQ
Which is cheaper, Claude Haiku 5.5 or GPT-5.5?
Claude Haiku 5.5 is 98% cheaper per 1M input tokens than GPT-5.5, $0.10 vs $5. For 10M input and 2M output tokens, Claude Haiku 5.5 costs $2 and GPT-5.5 $110 at standard rates.
Which is cheaper with prompt caching, Claude Haiku 5.5 or GPT-5.5?
Claude Haiku 5.5 charges $0.01 per 1M cached input tokens, 90% below its standard input rate, and GPT-5.5 $0.50, 90% below. With 9M of 10M input tokens cached and 2M output tokens, Claude Haiku 5.5 costs $1.19 and GPT-5.5 $69.50.
Which scores higher on independent benchmarks, Claude Haiku 5.5 or GPT-5.5?
GPT-5.5 leads on GPQA Diamond, 90.7% to 89.6%; GPT-5.5 leads on FrontierMath Tiers 1-3 (v2), 85.3% to 75.1%; GPT-5.5 leads on SimpleQA Verified, 63% to 23.8%. Scores are independent evaluations, not either vendor's launch figures.
Which has the larger context window, Claude Haiku 5.5 or GPT-5.5?
GPT-5.5 has the larger context window, 1,050,000 vs 1,000,000 tokens. Both return up to 128,000 tokens per response.
Further reading
More on Claude Haiku 5.5 and GPT-5.5
Articles on Claude Haiku 5.5 and GPT-5.5
Related comparisons
- Claude Fable 5 vs Claude Haiku 5.5
- Claude Opus 4.8 vs GPT-5.5
- Claude Haiku 5.5 vs Claude Opus 4.8
- Gemini 3.5 Flash vs GPT-5.5
- Claude Haiku 5.5 vs Claude Opus 5.5
- Claude Opus 5.5 vs GPT-5.5
- Claude Haiku 5.5 vs Claude Sonnet 5
- GPT-5.5 vs GPT-6 Astra
- Claude Haiku 5.5 vs Gemini 3 Flash Preview
- Gemini 3.8 Flash vs GPT-5.5
- Claude Haiku 5.5 vs GPT-4.1
- Claude Opus 5 vs GPT-5.5
Production evaluation
Choosing between Claude Haiku 5.5 and GPT-5.5?
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